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Finding the Fourth Proportional to 522,646.24, 721,561 and 329,219.76

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Solution

The fourth proportional to 522,646.24, 721,561 and 329,219.76 is: 454,518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,646.24 : 721,561 = 329,219.76 : x
  2. Step 2: Convert to fraction form
    522,646.24/721,561 = 329,219.76/x
  3. Step 3: Cross multiply
    522,646.24x = 721,561 × 329,219.76
  4. Step 4: Simplify right side
    522,646.24x = 237,552,139,245.36
  5. Step 5: Solve for x
    x = 237,552,139,245.36/522,646.24
  6. Step 6: Final answer
    x = 454,518.03

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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.