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Finding the Fourth Proportional to 492,777.70, 739,166.55 and 315,630.70

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Solution

The fourth proportional to 492,777.70, 739,166.55 and 315,630.70 is: 473,446.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,777.70 : 739,166.55 = 315,630.70 : x
  2. Step 2: Convert to fraction form
    492,777.70/739,166.55 = 315,630.70/x
  3. Step 3: Cross multiply
    492,777.70x = 739,166.55 × 315,630.70
  4. Step 4: Simplify right side
    492,777.70x = 233,303,655,593.09
  5. Step 5: Solve for x
    x = 233,303,655,593.09/492,777.70
  6. Step 6: Final answer
    x = 473,446.05

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Similar ratio
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1.5x scale

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.