Home / 742,011.92-1,023,201.92-440,147.60

Finding the Fourth Proportional to 742,011.92, 1,023,201.92 and 440,147.60

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Solution

The fourth proportional to 742,011.92, 1,023,201.92 and 440,147.60 is: 606,944.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,011.92 : 1,023,201.92 = 440,147.60 : x
  2. Step 2: Convert to fraction form
    742,011.92/1,023,201.92 = 440,147.60/x
  3. Step 3: Cross multiply
    742,011.92x = 1,023,201.92 × 440,147.60
  4. Step 4: Simplify right side
    742,011.92x = 450,359,869,403.39
  5. Step 5: Solve for x
    x = 450,359,869,403.39/742,011.92
  6. Step 6: Final answer
    x = 606,944.25

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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.