Home / 3,118,654.60-4,678,452.78-1,321,545.40

Finding the Fourth Proportional to 3,118,654.60, 4,678,452.78 and 1,321,545.40

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Solution

The fourth proportional to 3,118,654.60, 4,678,452.78 and 1,321,545.40 is: 1,982,517.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,654.60 : 4,678,452.78 = 1,321,545.40 : x
  2. Step 2: Convert to fraction form
    3,118,654.60/4,678,452.78 = 1,321,545.40/x
  3. Step 3: Cross multiply
    3,118,654.60x = 4,678,452.78 × 1,321,545.40
  4. Step 4: Simplify right side
    3,118,654.60x = 6,182,787,750,526.21
  5. Step 5: Solve for x
    x = 6,182,787,750,526.21/3,118,654.60
  6. Step 6: Final answer
    x = 1,982,517.64

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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.