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Finding the Fourth Proportional to 888,294.60, 1,330,473.60 and 687,965.40

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Solution

The fourth proportional to 888,294.60, 1,330,473.60 and 687,965.40 is: 1,030,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,294.60 : 1,330,473.60 = 687,965.40 : x
  2. Step 2: Convert to fraction form
    888,294.60/1,330,473.60 = 687,965.40/x
  3. Step 3: Cross multiply
    888,294.60x = 1,330,473.60 × 687,965.40
  4. Step 4: Simplify right side
    888,294.60x = 915,319,802,413.44
  5. Step 5: Solve for x
    x = 915,319,802,413.44/888,294.60
  6. Step 6: Final answer
    x = 1,030,423.69

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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.