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Finding the Fourth Proportional to 485,409.33, 669,552.17 and 322,062.30

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Solution

The fourth proportional to 485,409.33, 669,552.17 and 322,062.30 is: 444,238.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,409.33 : 669,552.17 = 322,062.30 : x
  2. Step 2: Convert to fraction form
    485,409.33/669,552.17 = 322,062.30/x
  3. Step 3: Cross multiply
    485,409.33x = 669,552.17 × 322,062.30
  4. Step 4: Simplify right side
    485,409.33x = 215,637,510,229.88
  5. Step 5: Solve for x
    x = 215,637,510,229.88/485,409.33
  6. Step 6: Final answer
    x = 444,238.50

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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.