Home / 839,959.30-1,259,793.15-307,206.10

Finding the Fourth Proportional to 839,959.30, 1,259,793.15 and 307,206.10

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Solution

The fourth proportional to 839,959.30, 1,259,793.15 and 307,206.10 is: 460,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,959.30 : 1,259,793.15 = 307,206.10 : x
  2. Step 2: Convert to fraction form
    839,959.30/1,259,793.15 = 307,206.10/x
  3. Step 3: Cross multiply
    839,959.30x = 1,259,793.15 × 307,206.10
  4. Step 4: Simplify right side
    839,959.30x = 387,016,140,418.22
  5. Step 5: Solve for x
    x = 387,016,140,418.22/839,959.30
  6. Step 6: Final answer
    x = 460,755.83

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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.