Home / 769,439.70-1,154,159.55-237,123.90

Finding the Fourth Proportional to 769,439.70, 1,154,159.55 and 237,123.90

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Solution

The fourth proportional to 769,439.70, 1,154,159.55 and 237,123.90 is: 355,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,439.70 : 1,154,159.55 = 237,123.90 : x
  2. Step 2: Convert to fraction form
    769,439.70/1,154,159.55 = 237,123.90/x
  3. Step 3: Cross multiply
    769,439.70x = 1,154,159.55 × 237,123.90
  4. Step 4: Simplify right side
    769,439.70x = 273,678,813,718.25
  5. Step 5: Solve for x
    x = 273,678,813,718.25/769,439.70
  6. Step 6: Final answer
    x = 355,685.85

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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.