Home / 843,234.40-1,262,227.20-487,190.80

Finding the Fourth Proportional to 843,234.40, 1,262,227.20 and 487,190.80

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Solution

The fourth proportional to 843,234.40, 1,262,227.20 and 487,190.80 is: 729,269.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,234.40 : 1,262,227.20 = 487,190.80 : x
  2. Step 2: Convert to fraction form
    843,234.40/1,262,227.20 = 487,190.80/x
  3. Step 3: Cross multiply
    843,234.40x = 1,262,227.20 × 487,190.80
  4. Step 4: Simplify right side
    843,234.40x = 614,945,479,349.76
  5. Step 5: Solve for x
    x = 614,945,479,349.76/843,234.40
  6. Step 6: Final answer
    x = 729,269.92

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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.