Home / 742,171.78-1,024,293.53-415,609.12

Finding the Fourth Proportional to 742,171.78, 1,024,293.53 and 415,609.12

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Solution

The fourth proportional to 742,171.78, 1,024,293.53 and 415,609.12 is: 573,594.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,171.78 : 1,024,293.53 = 415,609.12 : x
  2. Step 2: Convert to fraction form
    742,171.78/1,024,293.53 = 415,609.12/x
  3. Step 3: Cross multiply
    742,171.78x = 1,024,293.53 × 415,609.12
  4. Step 4: Simplify right side
    742,171.78x = 425,705,734,944.38
  5. Step 5: Solve for x
    x = 425,705,734,944.38/742,171.78
  6. Step 6: Final answer
    x = 573,594.61

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.