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Finding the Fourth Proportional to 608,081.60, 912,381.60 and 383,614.40

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Solution

The fourth proportional to 608,081.60, 912,381.60 and 383,614.40 is: 575,585.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,081.60 : 912,381.60 = 383,614.40 : x
  2. Step 2: Convert to fraction form
    608,081.60/912,381.60 = 383,614.40/x
  3. Step 3: Cross multiply
    608,081.60x = 912,381.60 × 383,614.40
  4. Step 4: Simplify right side
    608,081.60x = 350,002,720,055.04
  5. Step 5: Solve for x
    x = 350,002,720,055.04/608,081.60
  6. Step 6: Final answer
    x = 575,585.12

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.