Home / 726,710.80-1,088,960.88-347,108.82

Finding the Fourth Proportional to 726,710.80, 1,088,960.88 and 347,108.82

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Solution

The fourth proportional to 726,710.80, 1,088,960.88 and 347,108.82 is: 520,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,710.80 : 1,088,960.88 = 347,108.82 : x
  2. Step 2: Convert to fraction form
    726,710.80/1,088,960.88 = 347,108.82/x
  3. Step 3: Cross multiply
    726,710.80x = 1,088,960.88 × 347,108.82
  4. Step 4: Simplify right side
    726,710.80x = 377,987,926,082.96
  5. Step 5: Solve for x
    x = 377,987,926,082.96/726,710.80
  6. Step 6: Final answer
    x = 520,135.28

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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.