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Finding the Fourth Proportional to 1,787,738.52, 2,680,764.57 and 649,700.40

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Solution

The fourth proportional to 1,787,738.52, 2,680,764.57 and 649,700.40 is: 974,244.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,738.52 : 2,680,764.57 = 649,700.40 : x
  2. Step 2: Convert to fraction form
    1,787,738.52/2,680,764.57 = 649,700.40/x
  3. Step 3: Cross multiply
    1,787,738.52x = 2,680,764.57 × 649,700.40
  4. Step 4: Simplify right side
    1,787,738.52x = 1,741,693,813,434.83
  5. Step 5: Solve for x
    x = 1,741,693,813,434.83/1,787,738.52
  6. Step 6: Final answer
    x = 974,244.16

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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.