Home / 726,712.80-1,088,963.88-347,110.82

Finding the Fourth Proportional to 726,712.80, 1,088,963.88 and 347,110.82

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Solution

The fourth proportional to 726,712.80, 1,088,963.88 and 347,110.82 is: 520,138.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,712.80 : 1,088,963.88 = 347,110.82 : x
  2. Step 2: Convert to fraction form
    726,712.80/1,088,963.88 = 347,110.82/x
  3. Step 3: Cross multiply
    726,712.80x = 1,088,963.88 × 347,110.82
  4. Step 4: Simplify right side
    726,712.80x = 377,991,145,337.18
  5. Step 5: Solve for x
    x = 377,991,145,337.18/726,712.80
  6. Step 6: Final answer
    x = 520,138.28

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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.