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Finding the Fourth Proportional to 529,160.40, 730,220.40 and 314,294.76

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Solution

The fourth proportional to 529,160.40, 730,220.40 and 314,294.76 is: 433,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,160.40 : 730,220.40 = 314,294.76 : x
  2. Step 2: Convert to fraction form
    529,160.40/730,220.40 = 314,294.76/x
  3. Step 3: Cross multiply
    529,160.40x = 730,220.40 × 314,294.76
  4. Step 4: Simplify right side
    529,160.40x = 229,504,445,365.10
  5. Step 5: Solve for x
    x = 229,504,445,365.10/529,160.40
  6. Step 6: Final answer
    x = 433,714.32

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.