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Finding the Fourth Proportional to 485,655.10, 728,482.65 and 327,024.70

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Solution

The fourth proportional to 485,655.10, 728,482.65 and 327,024.70 is: 490,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,655.10 : 728,482.65 = 327,024.70 : x
  2. Step 2: Convert to fraction form
    485,655.10/728,482.65 = 327,024.70/x
  3. Step 3: Cross multiply
    485,655.10x = 728,482.65 × 327,024.70
  4. Step 4: Simplify right side
    485,655.10x = 238,231,820,071.46
  5. Step 5: Solve for x
    x = 238,231,820,071.46/485,655.10
  6. Step 6: Final answer
    x = 490,537.05

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.