Home / 917,337.20-1,376,005.80-243,417.20

Finding the Fourth Proportional to 917,337.20, 1,376,005.80 and 243,417.20

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Solution

The fourth proportional to 917,337.20, 1,376,005.80 and 243,417.20 is: 365,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,337.20 : 1,376,005.80 = 243,417.20 : x
  2. Step 2: Convert to fraction form
    917,337.20/1,376,005.80 = 243,417.20/x
  3. Step 3: Cross multiply
    917,337.20x = 1,376,005.80 × 243,417.20
  4. Step 4: Simplify right side
    917,337.20x = 334,943,479,019.76
  5. Step 5: Solve for x
    x = 334,943,479,019.76/917,337.20
  6. Step 6: Final answer
    x = 365,125.80

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Double scale
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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.