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Finding the Fourth Proportional to 492,767.20, 739,150.80 and 315,620.20

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Solution

The fourth proportional to 492,767.20, 739,150.80 and 315,620.20 is: 473,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,767.20 : 739,150.80 = 315,620.20 : x
  2. Step 2: Convert to fraction form
    492,767.20/739,150.80 = 315,620.20/x
  3. Step 3: Cross multiply
    492,767.20x = 739,150.80 × 315,620.20
  4. Step 4: Simplify right side
    492,767.20x = 233,290,923,326.16
  5. Step 5: Solve for x
    x = 233,290,923,326.16/492,767.20
  6. Step 6: Final answer
    x = 473,430.30

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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.