Home / 787,044.30-1,086,282.45-500,508.96

Finding the Fourth Proportional to 787,044.30, 1,086,282.45 and 500,508.96

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Solution

The fourth proportional to 787,044.30, 1,086,282.45 and 500,508.96 is: 690,804.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,044.30 : 1,086,282.45 = 500,508.96 : x
  2. Step 2: Convert to fraction form
    787,044.30/1,086,282.45 = 500,508.96/x
  3. Step 3: Cross multiply
    787,044.30x = 1,086,282.45 × 500,508.96
  4. Step 4: Simplify right side
    787,044.30x = 543,694,099,315.75
  5. Step 5: Solve for x
    x = 543,694,099,315.75/787,044.30
  6. Step 6: Final answer
    x = 690,804.95

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1.5x scale

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.