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Finding the Fourth Proportional to 886,654.80, 1,329,107.40 and 437,007.60

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Solution

The fourth proportional to 886,654.80, 1,329,107.40 and 437,007.60 is: 655,080.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,654.80 : 1,329,107.40 = 437,007.60 : x
  2. Step 2: Convert to fraction form
    886,654.80/1,329,107.40 = 437,007.60/x
  3. Step 3: Cross multiply
    886,654.80x = 1,329,107.40 × 437,007.60
  4. Step 4: Simplify right side
    886,654.80x = 580,830,035,016.24
  5. Step 5: Solve for x
    x = 580,830,035,016.24/886,654.80
  6. Step 6: Final answer
    x = 655,080.24

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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.