Home / 747,516.78-1,121,422.86-274,206.24

Finding the Fourth Proportional to 747,516.78, 1,121,422.86 and 274,206.24

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Solution

The fourth proportional to 747,516.78, 1,121,422.86 and 274,206.24 is: 411,363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,516.78 : 1,121,422.86 = 274,206.24 : x
  2. Step 2: Convert to fraction form
    747,516.78/1,121,422.86 = 274,206.24/x
  3. Step 3: Cross multiply
    747,516.78x = 1,121,422.86 × 274,206.24
  4. Step 4: Simplify right side
    747,516.78x = 307,501,145,890.65
  5. Step 5: Solve for x
    x = 307,501,145,890.65/747,516.78
  6. Step 6: Final answer
    x = 411,363.54

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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.