Home / 690,857.70-1,036,286.55-241,429.20

Finding the Fourth Proportional to 690,857.70, 1,036,286.55 and 241,429.20

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Solution

The fourth proportional to 690,857.70, 1,036,286.55 and 241,429.20 is: 362,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,857.70 : 1,036,286.55 = 241,429.20 : x
  2. Step 2: Convert to fraction form
    690,857.70/1,036,286.55 = 241,429.20/x
  3. Step 3: Cross multiply
    690,857.70x = 1,036,286.55 × 241,429.20
  4. Step 4: Simplify right side
    690,857.70x = 250,189,832,737.26
  5. Step 5: Solve for x
    x = 250,189,832,737.26/690,857.70
  6. Step 6: Final answer
    x = 362,143.80

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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.