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Finding the Fourth Proportional to 653,241.80, 901,572.18 and 398,740.52

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Solution

The fourth proportional to 653,241.80, 901,572.18 and 398,740.52 is: 550,322.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,241.80 : 901,572.18 = 398,740.52 : x
  2. Step 2: Convert to fraction form
    653,241.80/901,572.18 = 398,740.52/x
  3. Step 3: Cross multiply
    653,241.80x = 901,572.18 × 398,740.52
  4. Step 4: Simplify right side
    653,241.80x = 359,493,359,870.73
  5. Step 5: Solve for x
    x = 359,493,359,870.73/653,241.80
  6. Step 6: Final answer
    x = 550,322.04

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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.