Home / 765,285.60-1,148,049.90-259,894.20

Finding the Fourth Proportional to 765,285.60, 1,148,049.90 and 259,894.20

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Solution

The fourth proportional to 765,285.60, 1,148,049.90 and 259,894.20 is: 389,882.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,285.60 : 1,148,049.90 = 259,894.20 : x
  2. Step 2: Convert to fraction form
    765,285.60/1,148,049.90 = 259,894.20/x
  3. Step 3: Cross multiply
    765,285.60x = 1,148,049.90 × 259,894.20
  4. Step 4: Simplify right side
    765,285.60x = 298,371,510,320.58
  5. Step 5: Solve for x
    x = 298,371,510,320.58/765,285.60
  6. Step 6: Final answer
    x = 389,882.56

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1.5x scale

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.