Home / 1,324,667.20-1,987,000.80-684,969.70

Finding the Fourth Proportional to 1,324,667.20, 1,987,000.80 and 684,969.70

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Solution

The fourth proportional to 1,324,667.20, 1,987,000.80 and 684,969.70 is: 1,027,454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,667.20 : 1,987,000.80 = 684,969.70 : x
  2. Step 2: Convert to fraction form
    1,324,667.20/1,987,000.80 = 684,969.70/x
  3. Step 3: Cross multiply
    1,324,667.20x = 1,987,000.80 × 684,969.70
  4. Step 4: Simplify right side
    1,324,667.20x = 1,361,035,341,875.76
  5. Step 5: Solve for x
    x = 1,361,035,341,875.76/1,324,667.20
  6. Step 6: Final answer
    x = 1,027,454.55

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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.