Home / 858,480.80-1,287,209.20-526,295.20

Finding the Fourth Proportional to 858,480.80, 1,287,209.20 and 526,295.20

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Solution

The fourth proportional to 858,480.80, 1,287,209.20 and 526,295.20 is: 789,128.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,480.80 : 1,287,209.20 = 526,295.20 : x
  2. Step 2: Convert to fraction form
    858,480.80/1,287,209.20 = 526,295.20/x
  3. Step 3: Cross multiply
    858,480.80x = 1,287,209.20 × 526,295.20
  4. Step 4: Simplify right side
    858,480.80x = 677,452,023,355.84
  5. Step 5: Solve for x
    x = 677,452,023,355.84/858,480.80
  6. Step 6: Final answer
    x = 789,128.92

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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.