Home / 742,889.48-1,025,191.56-403,357.73

Finding the Fourth Proportional to 742,889.48, 1,025,191.56 and 403,357.73

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Solution

The fourth proportional to 742,889.48, 1,025,191.56 and 403,357.73 is: 556,635.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,889.48 : 1,025,191.56 = 403,357.73 : x
  2. Step 2: Convert to fraction form
    742,889.48/1,025,191.56 = 403,357.73/x
  3. Step 3: Cross multiply
    742,889.48x = 1,025,191.56 × 403,357.73
  4. Step 4: Simplify right side
    742,889.48x = 413,518,940,687.86
  5. Step 5: Solve for x
    x = 413,518,940,687.86/742,889.48
  6. Step 6: Final answer
    x = 556,635.88

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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.