Home / 747,519.78-1,121,427.36-274,209.24

Finding the Fourth Proportional to 747,519.78, 1,121,427.36 and 274,209.24

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Solution

The fourth proportional to 747,519.78, 1,121,427.36 and 274,209.24 is: 411,368.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,519.78 : 1,121,427.36 = 274,209.24 : x
  2. Step 2: Convert to fraction form
    747,519.78/1,121,427.36 = 274,209.24/x
  3. Step 3: Cross multiply
    747,519.78x = 1,121,427.36 × 274,209.24
  4. Step 4: Simplify right side
    747,519.78x = 307,505,744,100.81
  5. Step 5: Solve for x
    x = 307,505,744,100.81/747,519.78
  6. Step 6: Final answer
    x = 411,368.04

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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.