Home / 749,391.16-1,123,090.25-649,081.68

Finding the Fourth Proportional to 749,391.16, 1,123,090.25 and 649,081.68

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Solution

The fourth proportional to 749,391.16, 1,123,090.25 and 649,081.68 is: 972,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,391.16 : 1,123,090.25 = 649,081.68 : x
  2. Step 2: Convert to fraction form
    749,391.16/1,123,090.25 = 649,081.68/x
  3. Step 3: Cross multiply
    749,391.16x = 1,123,090.25 × 649,081.68
  4. Step 4: Simplify right side
    749,391.16x = 728,977,300,646.17
  5. Step 5: Solve for x
    x = 728,977,300,646.17/749,391.16
  6. Step 6: Final answer
    x = 972,759.41

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Double scale
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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.