Home / 492,523.20-738,784.80-315,376.20

Finding the Fourth Proportional to 492,523.20, 738,784.80 and 315,376.20

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Solution

The fourth proportional to 492,523.20, 738,784.80 and 315,376.20 is: 473,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,523.20 : 738,784.80 = 315,376.20 : x
  2. Step 2: Convert to fraction form
    492,523.20/738,784.80 = 315,376.20/x
  3. Step 3: Cross multiply
    492,523.20x = 738,784.80 × 315,376.20
  4. Step 4: Simplify right side
    492,523.20x = 232,995,142,841.76
  5. Step 5: Solve for x
    x = 232,995,142,841.76/492,523.20
  6. Step 6: Final answer
    x = 473,064.30

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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.