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Finding the Fourth Proportional to 442,863.32, 664,821.06 and 349,436.12

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Solution

The fourth proportional to 442,863.32, 664,821.06 and 349,436.12 is: 524,569.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,863.32 : 664,821.06 = 349,436.12 : x
  2. Step 2: Convert to fraction form
    442,863.32/664,821.06 = 349,436.12/x
  3. Step 3: Cross multiply
    442,863.32x = 664,821.06 × 349,436.12
  4. Step 4: Simplify right side
    442,863.32x = 232,312,491,700.69
  5. Step 5: Solve for x
    x = 232,312,491,700.69/442,863.32
  6. Step 6: Final answer
    x = 524,569.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.