Home / 830,110.40-1,245,165.60-231,070.40

Finding the Fourth Proportional to 830,110.40, 1,245,165.60 and 231,070.40

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Solution

The fourth proportional to 830,110.40, 1,245,165.60 and 231,070.40 is: 346,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,110.40 : 1,245,165.60 = 231,070.40 : x
  2. Step 2: Convert to fraction form
    830,110.40/1,245,165.60 = 231,070.40/x
  3. Step 3: Cross multiply
    830,110.40x = 1,245,165.60 × 231,070.40
  4. Step 4: Simplify right side
    830,110.40x = 287,720,913,258.24
  5. Step 5: Solve for x
    x = 287,720,913,258.24/830,110.40
  6. Step 6: Final answer
    x = 346,605.60

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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.