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Finding the Fourth Proportional to 636,825.24, 878,811.57 and 474,209.16

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Solution

The fourth proportional to 636,825.24, 878,811.57 and 474,209.16 is: 654,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,825.24 : 878,811.57 = 474,209.16 : x
  2. Step 2: Convert to fraction form
    636,825.24/878,811.57 = 474,209.16/x
  3. Step 3: Cross multiply
    636,825.24x = 878,811.57 × 474,209.16
  4. Step 4: Simplify right side
    636,825.24x = 416,740,496,407.98
  5. Step 5: Solve for x
    x = 416,740,496,407.98/636,825.24
  6. Step 6: Final answer
    x = 654,403.23

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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.