Home / 1,912,380.72-2,866,789.08-649,344.48

Finding the Fourth Proportional to 1,912,380.72, 2,866,789.08 and 649,344.48

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Solution

The fourth proportional to 1,912,380.72, 2,866,789.08 and 649,344.48 is: 973,411.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,380.72 : 2,866,789.08 = 649,344.48 : x
  2. Step 2: Convert to fraction form
    1,912,380.72/2,866,789.08 = 649,344.48/x
  3. Step 3: Cross multiply
    1,912,380.72x = 2,866,789.08 × 649,344.48
  4. Step 4: Simplify right side
    1,912,380.72x = 1,861,533,664,422.28
  5. Step 5: Solve for x
    x = 1,861,533,664,422.28/1,912,380.72
  6. Step 6: Final answer
    x = 973,411.65

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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.