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Finding the Fourth Proportional to 525,213.92, 724,846.92 and 321,356.72

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Solution

The fourth proportional to 525,213.92, 724,846.92 and 321,356.72 is: 443,503.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,213.92 : 724,846.92 = 321,356.72 : x
  2. Step 2: Convert to fraction form
    525,213.92/724,846.92 = 321,356.72/x
  3. Step 3: Cross multiply
    525,213.92x = 724,846.92 × 321,356.72
  4. Step 4: Simplify right side
    525,213.92x = 232,934,428,713.30
  5. Step 5: Solve for x
    x = 232,934,428,713.30/525,213.92
  6. Step 6: Final answer
    x = 443,503.91

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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.