Home / 815,000.40-1,222,500.60-614,233.80

Finding the Fourth Proportional to 815,000.40, 1,222,500.60 and 614,233.80

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Solution

The fourth proportional to 815,000.40, 1,222,500.60 and 614,233.80 is: 921,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,000.40 : 1,222,500.60 = 614,233.80 : x
  2. Step 2: Convert to fraction form
    815,000.40/1,222,500.60 = 614,233.80/x
  3. Step 3: Cross multiply
    815,000.40x = 1,222,500.60 × 614,233.80
  4. Step 4: Simplify right side
    815,000.40x = 750,901,189,040.28
  5. Step 5: Solve for x
    x = 750,901,189,040.28/815,000.40
  6. Step 6: Final answer
    x = 921,350.70

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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.