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Finding the Fourth Proportional to 684,270.64, 944,269.56 and 374,180.40

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Solution

The fourth proportional to 684,270.64, 944,269.56 and 374,180.40 is: 516,355.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,270.64 : 944,269.56 = 374,180.40 : x
  2. Step 2: Convert to fraction form
    684,270.64/944,269.56 = 374,180.40/x
  3. Step 3: Cross multiply
    684,270.64x = 944,269.56 × 374,180.40
  4. Step 4: Simplify right side
    684,270.64x = 353,327,161,668.62
  5. Step 5: Solve for x
    x = 353,327,161,668.62/684,270.64
  6. Step 6: Final answer
    x = 516,355.87

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.