Home / 858,766.70-1,288,150.05-699,334.40

Finding the Fourth Proportional to 858,766.70, 1,288,150.05 and 699,334.40

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Solution

The fourth proportional to 858,766.70, 1,288,150.05 and 699,334.40 is: 1,049,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,766.70 : 1,288,150.05 = 699,334.40 : x
  2. Step 2: Convert to fraction form
    858,766.70/1,288,150.05 = 699,334.40/x
  3. Step 3: Cross multiply
    858,766.70x = 1,288,150.05 × 699,334.40
  4. Step 4: Simplify right side
    858,766.70x = 900,847,642,326.72
  5. Step 5: Solve for x
    x = 900,847,642,326.72/858,766.70
  6. Step 6: Final answer
    x = 1,049,001.60

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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.