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Finding the Fourth Proportional to 542,338.79, 748,411.31 and 297,315.17

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Solution

The fourth proportional to 542,338.79, 748,411.31 and 297,315.17 is: 410,286.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,338.79 : 748,411.31 = 297,315.17 : x
  2. Step 2: Convert to fraction form
    542,338.79/748,411.31 = 297,315.17/x
  3. Step 3: Cross multiply
    542,338.79x = 748,411.31 × 297,315.17
  4. Step 4: Simplify right side
    542,338.79x = 222,514,035,862.57
  5. Step 5: Solve for x
    x = 222,514,035,862.57/542,338.79
  6. Step 6: Final answer
    x = 410,286.04

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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.