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Finding the Fourth Proportional to 529,802.96, 731,399 and 408,672.32

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Solution

The fourth proportional to 529,802.96, 731,399 and 408,672.32 is: 564,176.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,802.96 : 731,399 = 408,672.32 : x
  2. Step 2: Convert to fraction form
    529,802.96/731,399 = 408,672.32/x
  3. Step 3: Cross multiply
    529,802.96x = 731,399 × 408,672.32
  4. Step 4: Simplify right side
    529,802.96x = 298,902,526,175.68
  5. Step 5: Solve for x
    x = 298,902,526,175.68/529,802.96
  6. Step 6: Final answer
    x = 564,176.78

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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.