Home / 880,400.40-1,320,600.60-754,429.20

Finding the Fourth Proportional to 880,400.40, 1,320,600.60 and 754,429.20

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Solution

The fourth proportional to 880,400.40, 1,320,600.60 and 754,429.20 is: 1,131,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,400.40 : 1,320,600.60 = 754,429.20 : x
  2. Step 2: Convert to fraction form
    880,400.40/1,320,600.60 = 754,429.20/x
  3. Step 3: Cross multiply
    880,400.40x = 1,320,600.60 × 754,429.20
  4. Step 4: Simplify right side
    880,400.40x = 996,299,654,177.52
  5. Step 5: Solve for x
    x = 996,299,654,177.52/880,400.40
  6. Step 6: Final answer
    x = 1,131,643.80

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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.