Home / 652,023.20-977,451.60-427,491.20

Finding the Fourth Proportional to 652,023.20, 977,451.60 and 427,491.20

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Solution

The fourth proportional to 652,023.20, 977,451.60 and 427,491.20 is: 640,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,023.20 : 977,451.60 = 427,491.20 : x
  2. Step 2: Convert to fraction form
    652,023.20/977,451.60 = 427,491.20/x
  3. Step 3: Cross multiply
    652,023.20x = 977,451.60 × 427,491.20
  4. Step 4: Simplify right side
    652,023.20x = 417,851,957,425.92
  5. Step 5: Solve for x
    x = 417,851,957,425.92/652,023.20
  6. Step 6: Final answer
    x = 640,854.43

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1.5x scale

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.