Home / 787,718.28-1,178,778.06-576,833.16

Finding the Fourth Proportional to 787,718.28, 1,178,778.06 and 576,833.16

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Solution

The fourth proportional to 787,718.28, 1,178,778.06 and 576,833.16 is: 863,199.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,718.28 : 1,178,778.06 = 576,833.16 : x
  2. Step 2: Convert to fraction form
    787,718.28/1,178,778.06 = 576,833.16/x
  3. Step 3: Cross multiply
    787,718.28x = 1,178,778.06 × 576,833.16
  4. Step 4: Simplify right side
    787,718.28x = 679,958,273,288.47
  5. Step 5: Solve for x
    x = 679,958,273,288.47/787,718.28
  6. Step 6: Final answer
    x = 863,199.81

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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.