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Finding the Fourth Proportional to 529,061.74, 730,110.48 and 287,346.58

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Solution

The fourth proportional to 529,061.74, 730,110.48 and 287,346.58 is: 396,541.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,061.74 : 730,110.48 = 287,346.58 : x
  2. Step 2: Convert to fraction form
    529,061.74/730,110.48 = 287,346.58/x
  3. Step 3: Cross multiply
    529,061.74x = 730,110.48 × 287,346.58
  4. Step 4: Simplify right side
    529,061.74x = 209,794,749,450.16
  5. Step 5: Solve for x
    x = 209,794,749,450.16/529,061.74
  6. Step 6: Final answer
    x = 396,541.15

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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.