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Finding the Fourth Proportional to 922,871.10, 1,384,565.85 and 449,571.90

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Solution

The fourth proportional to 922,871.10, 1,384,565.85 and 449,571.90 is: 674,484.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,871.10 : 1,384,565.85 = 449,571.90 : x
  2. Step 2: Convert to fraction form
    922,871.10/1,384,565.85 = 449,571.90/x
  3. Step 3: Cross multiply
    922,871.10x = 1,384,565.85 × 449,571.90
  4. Step 4: Simplify right side
    922,871.10x = 622,461,899,859.62
  5. Step 5: Solve for x
    x = 622,461,899,859.62/922,871.10
  6. Step 6: Final answer
    x = 674,484.12

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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.