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Finding the Fourth Proportional to 522,647.24, 721,562.38 and 329,220.76

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Solution

The fourth proportional to 522,647.24, 721,562.38 and 329,220.76 is: 454,519.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,647.24 : 721,562.38 = 329,220.76 : x
  2. Step 2: Convert to fraction form
    522,647.24/721,562.38 = 329,220.76/x
  3. Step 3: Cross multiply
    522,647.24x = 721,562.38 × 329,220.76
  4. Step 4: Simplify right side
    522,647.24x = 237,553,315,131.01
  5. Step 5: Solve for x
    x = 237,553,315,131.01/522,647.24
  6. Step 6: Final answer
    x = 454,519.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.