Home / 858,862.20-1,288,293.30-606,919.80

Finding the Fourth Proportional to 858,862.20, 1,288,293.30 and 606,919.80

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Solution

The fourth proportional to 858,862.20, 1,288,293.30 and 606,919.80 is: 910,379.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,862.20 : 1,288,293.30 = 606,919.80 : x
  2. Step 2: Convert to fraction form
    858,862.20/1,288,293.30 = 606,919.80/x
  3. Step 3: Cross multiply
    858,862.20x = 1,288,293.30 × 606,919.80
  4. Step 4: Simplify right side
    858,862.20x = 781,890,711,977.34
  5. Step 5: Solve for x
    x = 781,890,711,977.34/858,862.20
  6. Step 6: Final answer
    x = 910,379.70

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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.