Home / 1,515,078.60-2,275,242.30-806,490.60

Finding the Fourth Proportional to 1,515,078.60, 2,275,242.30 and 806,490.60

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Solution

The fourth proportional to 1,515,078.60, 2,275,242.30 and 806,490.60 is: 1,211,132.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,078.60 : 2,275,242.30 = 806,490.60 : x
  2. Step 2: Convert to fraction form
    1,515,078.60/2,275,242.30 = 806,490.60/x
  3. Step 3: Cross multiply
    1,515,078.60x = 2,275,242.30 × 806,490.60
  4. Step 4: Simplify right side
    1,515,078.60x = 1,834,961,527,672.38
  5. Step 5: Solve for x
    x = 1,834,961,527,672.38/1,515,078.60
  6. Step 6: Final answer
    x = 1,211,132.89

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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.