Home / 747,722.40-1,121,729.40-298,366.80

Finding the Fourth Proportional to 747,722.40, 1,121,729.40 and 298,366.80

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Solution

The fourth proportional to 747,722.40, 1,121,729.40 and 298,366.80 is: 447,608.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,722.40 : 1,121,729.40 = 298,366.80 : x
  2. Step 2: Convert to fraction form
    747,722.40/1,121,729.40 = 298,366.80/x
  3. Step 3: Cross multiply
    747,722.40x = 1,121,729.40 × 298,366.80
  4. Step 4: Simplify right side
    747,722.40x = 334,686,811,543.92
  5. Step 5: Solve for x
    x = 334,686,811,543.92/747,722.40
  6. Step 6: Final answer
    x = 447,608.38

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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.