Home / 891,523.20-1,337,488.79-386,168.30

Finding the Fourth Proportional to 891,523.20, 1,337,488.79 and 386,168.30

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Solution

The fourth proportional to 891,523.20, 1,337,488.79 and 386,168.30 is: 579,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,523.20 : 1,337,488.79 = 386,168.30 : x
  2. Step 2: Convert to fraction form
    891,523.20/1,337,488.79 = 386,168.30/x
  3. Step 3: Cross multiply
    891,523.20x = 1,337,488.79 × 386,168.30
  4. Step 4: Simplify right side
    891,523.20x = 516,495,763,685.07
  5. Step 5: Solve for x
    x = 516,495,763,685.07/891,523.20
  6. Step 6: Final answer
    x = 579,340.80

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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.