Home / 726,713.80-1,088,965.38-347,111.82

Finding the Fourth Proportional to 726,713.80, 1,088,965.38 and 347,111.82

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Solution

The fourth proportional to 726,713.80, 1,088,965.38 and 347,111.82 is: 520,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,713.80 : 1,088,965.38 = 347,111.82 : x
  2. Step 2: Convert to fraction form
    726,713.80/1,088,965.38 = 347,111.82/x
  3. Step 3: Cross multiply
    726,713.80x = 1,088,965.38 × 347,111.82
  4. Step 4: Simplify right side
    726,713.80x = 377,992,754,968.79
  5. Step 5: Solve for x
    x = 377,992,754,968.79/726,713.80
  6. Step 6: Final answer
    x = 520,139.78

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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.