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Finding the Fourth Proportional to 657,684.80, 986,527.20 and 587,643.20

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Solution

The fourth proportional to 657,684.80, 986,527.20 and 587,643.20 is: 881,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,684.80 : 986,527.20 = 587,643.20 : x
  2. Step 2: Convert to fraction form
    657,684.80/986,527.20 = 587,643.20/x
  3. Step 3: Cross multiply
    657,684.80x = 986,527.20 × 587,643.20
  4. Step 4: Simplify right side
    657,684.80x = 579,726,000,695.04
  5. Step 5: Solve for x
    x = 579,726,000,695.04/657,684.80
  6. Step 6: Final answer
    x = 881,464.80

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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.