Home / 1,282,489.20-1,922,761.80-651,855.60

Finding the Fourth Proportional to 1,282,489.20, 1,922,761.80 and 651,855.60

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Solution

The fourth proportional to 1,282,489.20, 1,922,761.80 and 651,855.60 is: 977,289.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,489.20 : 1,922,761.80 = 651,855.60 : x
  2. Step 2: Convert to fraction form
    1,282,489.20/1,922,761.80 = 651,855.60/x
  3. Step 3: Cross multiply
    1,282,489.20x = 1,922,761.80 × 651,855.60
  4. Step 4: Simplify right side
    1,282,489.20x = 1,253,363,046,796.08
  5. Step 5: Solve for x
    x = 1,253,363,046,796.08/1,282,489.20
  6. Step 6: Final answer
    x = 977,289.36

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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.