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Finding the Fourth Proportional to 525,211.92, 724,844.16 and 321,354.72

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Solution

The fourth proportional to 525,211.92, 724,844.16 and 321,354.72 is: 443,501.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,211.92 : 724,844.16 = 321,354.72 : x
  2. Step 2: Convert to fraction form
    525,211.92/724,844.16 = 321,354.72/x
  3. Step 3: Cross multiply
    525,211.92x = 724,844.16 × 321,354.72
  4. Step 4: Simplify right side
    525,211.92x = 232,932,092,080.44
  5. Step 5: Solve for x
    x = 232,932,092,080.44/525,211.92
  6. Step 6: Final answer
    x = 443,501.15

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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.