Home / 699,488.80-1,049,233.20-486,912.40

Finding the Fourth Proportional to 699,488.80, 1,049,233.20 and 486,912.40

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Solution

The fourth proportional to 699,488.80, 1,049,233.20 and 486,912.40 is: 730,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,488.80 : 1,049,233.20 = 486,912.40 : x
  2. Step 2: Convert to fraction form
    699,488.80/1,049,233.20 = 486,912.40/x
  3. Step 3: Cross multiply
    699,488.80x = 1,049,233.20 × 486,912.40
  4. Step 4: Simplify right side
    699,488.80x = 510,884,655,571.68
  5. Step 5: Solve for x
    x = 510,884,655,571.68/699,488.80
  6. Step 6: Final answer
    x = 730,368.60

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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.