Home / 690,855.70-1,036,283.55-241,427.20

Finding the Fourth Proportional to 690,855.70, 1,036,283.55 and 241,427.20

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Solution

The fourth proportional to 690,855.70, 1,036,283.55 and 241,427.20 is: 362,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,855.70 : 1,036,283.55 = 241,427.20 : x
  2. Step 2: Convert to fraction form
    690,855.70/1,036,283.55 = 241,427.20/x
  3. Step 3: Cross multiply
    690,855.70x = 1,036,283.55 × 241,427.20
  4. Step 4: Simplify right side
    690,855.70x = 250,187,035,882.56
  5. Step 5: Solve for x
    x = 250,187,035,882.56/690,855.70
  6. Step 6: Final answer
    x = 362,140.80

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Half scale
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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.