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Finding the Fourth Proportional to 870,801.60, 1,304,452.80 and 604,862.40

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Solution

The fourth proportional to 870,801.60, 1,304,452.80 and 604,862.40 is: 906,078.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,801.60 : 1,304,452.80 = 604,862.40 : x
  2. Step 2: Convert to fraction form
    870,801.60/1,304,452.80 = 604,862.40/x
  3. Step 3: Cross multiply
    870,801.60x = 1,304,452.80 × 604,862.40
  4. Step 4: Simplify right side
    870,801.60x = 789,014,451,294.72
  5. Step 5: Solve for x
    x = 789,014,451,294.72/870,801.60
  6. Step 6: Final answer
    x = 906,078.32

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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.