Home / 811,787.64-1,120,580.94-726,756.92

Finding the Fourth Proportional to 811,787.64, 1,120,580.94 and 726,756.92

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Solution

The fourth proportional to 811,787.64, 1,120,580.94 and 726,756.92 is: 1,003,205.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,787.64 : 1,120,580.94 = 726,756.92 : x
  2. Step 2: Convert to fraction form
    811,787.64/1,120,580.94 = 726,756.92/x
  3. Step 3: Cross multiply
    811,787.64x = 1,120,580.94 × 726,756.92
  4. Step 4: Simplify right side
    811,787.64x = 814,389,952,565.11
  5. Step 5: Solve for x
    x = 814,389,952,565.11/811,787.64
  6. Step 6: Final answer
    x = 1,003,205.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.