Home / 878,460.80-1,316,654.40-656,585.60

Finding the Fourth Proportional to 878,460.80, 1,316,654.40 and 656,585.60

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Solution

The fourth proportional to 878,460.80, 1,316,654.40 and 656,585.60 is: 984,103.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,460.80 : 1,316,654.40 = 656,585.60 : x
  2. Step 2: Convert to fraction form
    878,460.80/1,316,654.40 = 656,585.60/x
  3. Step 3: Cross multiply
    878,460.80x = 1,316,654.40 × 656,585.60
  4. Step 4: Simplify right side
    878,460.80x = 864,496,319,216.64
  5. Step 5: Solve for x
    x = 864,496,319,216.64/878,460.80
  6. Step 6: Final answer
    x = 984,103.47

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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.