Home / 738,387.70-1,107,581.55-422,584.90

Finding the Fourth Proportional to 738,387.70, 1,107,581.55 and 422,584.90

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Solution

The fourth proportional to 738,387.70, 1,107,581.55 and 422,584.90 is: 633,877.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,387.70 : 1,107,581.55 = 422,584.90 : x
  2. Step 2: Convert to fraction form
    738,387.70/1,107,581.55 = 422,584.90/x
  3. Step 3: Cross multiply
    738,387.70x = 1,107,581.55 × 422,584.90
  4. Step 4: Simplify right side
    738,387.70x = 468,047,238,548.60
  5. Step 5: Solve for x
    x = 468,047,238,548.60/738,387.70
  6. Step 6: Final answer
    x = 633,877.35

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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.