Home / 917,350.90-1,376,026.35-243,430.90

Finding the Fourth Proportional to 917,350.90, 1,376,026.35 and 243,430.90

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Solution

The fourth proportional to 917,350.90, 1,376,026.35 and 243,430.90 is: 365,146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,350.90 : 1,376,026.35 = 243,430.90 : x
  2. Step 2: Convert to fraction form
    917,350.90/1,376,026.35 = 243,430.90/x
  3. Step 3: Cross multiply
    917,350.90x = 1,376,026.35 × 243,430.90
  4. Step 4: Simplify right side
    917,350.90x = 334,967,332,804.22
  5. Step 5: Solve for x
    x = 334,967,332,804.22/917,350.90
  6. Step 6: Final answer
    x = 365,146.35

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Half scale
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Double scale
Find fourth proportional to 917,351.90, 1,376,027.85 and 243,431.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.