Home / 747,770.20-1,120,343.10-613,925.80

Finding the Fourth Proportional to 747,770.20, 1,120,343.10 and 613,925.80

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Solution

The fourth proportional to 747,770.20, 1,120,343.10 and 613,925.80 is: 919,811.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,770.20 : 1,120,343.10 = 613,925.80 : x
  2. Step 2: Convert to fraction form
    747,770.20/1,120,343.10 = 613,925.80/x
  3. Step 3: Cross multiply
    747,770.20x = 1,120,343.10 × 613,925.80
  4. Step 4: Simplify right side
    747,770.20x = 687,807,533,941.98
  5. Step 5: Solve for x
    x = 687,807,533,941.98/747,770.20
  6. Step 6: Final answer
    x = 919,811.37

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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.