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Finding the Fourth Proportional to 492,775.20, 739,162.80 and 315,628.20

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Solution

The fourth proportional to 492,775.20, 739,162.80 and 315,628.20 is: 473,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,775.20 : 739,162.80 = 315,628.20 : x
  2. Step 2: Convert to fraction form
    492,775.20/739,162.80 = 315,628.20/x
  3. Step 3: Cross multiply
    492,775.20x = 739,162.80 × 315,628.20
  4. Step 4: Simplify right side
    492,775.20x = 233,300,624,070.96
  5. Step 5: Solve for x
    x = 233,300,624,070.96/492,775.20
  6. Step 6: Final answer
    x = 473,442.30

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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.