Home / 742,147.32-1,024,163.44-419,850.76

Finding the Fourth Proportional to 742,147.32, 1,024,163.44 and 419,850.76

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Solution

The fourth proportional to 742,147.32, 1,024,163.44 and 419,850.76 is: 579,394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,147.32 : 1,024,163.44 = 419,850.76 : x
  2. Step 2: Convert to fraction form
    742,147.32/1,024,163.44 = 419,850.76/x
  3. Step 3: Cross multiply
    742,147.32x = 1,024,163.44 × 419,850.76
  4. Step 4: Simplify right side
    742,147.32x = 429,995,798,648.21
  5. Step 5: Solve for x
    x = 429,995,798,648.21/742,147.32
  6. Step 6: Final answer
    x = 579,394.13

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Double scale
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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.