Home / 538,612.92-743,285.62-296,899.50

Finding the Fourth Proportional to 538,612.92, 743,285.62 and 296,899.50

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Solution

The fourth proportional to 538,612.92, 743,285.62 and 296,899.50 is: 409,721.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,612.92 : 743,285.62 = 296,899.50 : x
  2. Step 2: Convert to fraction form
    538,612.92/743,285.62 = 296,899.50/x
  3. Step 3: Cross multiply
    538,612.92x = 743,285.62 × 296,899.50
  4. Step 4: Simplify right side
    538,612.92x = 220,681,128,935.19
  5. Step 5: Solve for x
    x = 220,681,128,935.19/538,612.92
  6. Step 6: Final answer
    x = 409,721.19

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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.