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Finding the Fourth Proportional to 657,669.60, 986,504.40 and 539,474.40

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Solution

The fourth proportional to 657,669.60, 986,504.40 and 539,474.40 is: 809,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,669.60 : 986,504.40 = 539,474.40 : x
  2. Step 2: Convert to fraction form
    657,669.60/986,504.40 = 539,474.40/x
  3. Step 3: Cross multiply
    657,669.60x = 986,504.40 × 539,474.40
  4. Step 4: Simplify right side
    657,669.60x = 532,193,869,287.36
  5. Step 5: Solve for x
    x = 532,193,869,287.36/657,669.60
  6. Step 6: Final answer
    x = 809,211.60

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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.