Home / 547,654.60-819,869.10-408,032.20

Finding the Fourth Proportional to 547,654.60, 819,869.10 and 408,032.20

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Solution

The fourth proportional to 547,654.60, 819,869.10 and 408,032.20 is: 610,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,654.60 : 819,869.10 = 408,032.20 : x
  2. Step 2: Convert to fraction form
    547,654.60/819,869.10 = 408,032.20/x
  3. Step 3: Cross multiply
    547,654.60x = 819,869.10 × 408,032.20
  4. Step 4: Simplify right side
    547,654.60x = 334,532,992,585.02
  5. Step 5: Solve for x
    x = 334,532,992,585.02/547,654.60
  6. Step 6: Final answer
    x = 610,846.68

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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.