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Finding the Fourth Proportional to 529,265.73, 730,382.77 and 287,550.29

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Solution

The fourth proportional to 529,265.73, 730,382.77 and 287,550.29 is: 396,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,265.73 : 730,382.77 = 287,550.29 : x
  2. Step 2: Convert to fraction form
    529,265.73/730,382.77 = 287,550.29/x
  3. Step 3: Cross multiply
    529,265.73x = 730,382.77 × 287,550.29
  4. Step 4: Simplify right side
    529,265.73x = 210,021,775,401.50
  5. Step 5: Solve for x
    x = 210,021,775,401.50/529,265.73
  6. Step 6: Final answer
    x = 396,817.26

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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.