Home / 747,440.30-1,121,308.01-274,129.76

Finding the Fourth Proportional to 747,440.30, 1,121,308.01 and 274,129.76

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Solution

The fourth proportional to 747,440.30, 1,121,308.01 and 274,129.76 is: 411,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,440.30 : 1,121,308.01 = 274,129.76 : x
  2. Step 2: Convert to fraction form
    747,440.30/1,121,308.01 = 274,129.76/x
  3. Step 3: Cross multiply
    747,440.30x = 1,121,308.01 × 274,129.76
  4. Step 4: Simplify right side
    747,440.30x = 307,383,897,100.00
  5. Step 5: Solve for x
    x = 307,383,897,100.00/747,440.30
  6. Step 6: Final answer
    x = 411,248.76

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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.