Home / 1,275,998.40-1,912,910.40-565,639.20

Finding the Fourth Proportional to 1,275,998.40, 1,912,910.40 and 565,639.20

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Solution

The fourth proportional to 1,275,998.40, 1,912,910.40 and 565,639.20 is: 847,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,998.40 : 1,912,910.40 = 565,639.20 : x
  2. Step 2: Convert to fraction form
    1,275,998.40/1,912,910.40 = 565,639.20/x
  3. Step 3: Cross multiply
    1,275,998.40x = 1,912,910.40 × 565,639.20
  4. Step 4: Simplify right side
    1,275,998.40x = 1,082,017,108,327.68
  5. Step 5: Solve for x
    x = 1,082,017,108,327.68/1,275,998.40
  6. Step 6: Final answer
    x = 847,976.85

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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.