Home / 811,179.84-1,216,147.68-495,785.28

Finding the Fourth Proportional to 811,179.84, 1,216,147.68 and 495,785.28

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Solution

The fourth proportional to 811,179.84, 1,216,147.68 and 495,785.28 is: 743,297.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,179.84 : 1,216,147.68 = 495,785.28 : x
  2. Step 2: Convert to fraction form
    811,179.84/1,216,147.68 = 495,785.28/x
  3. Step 3: Cross multiply
    811,179.84x = 1,216,147.68 × 495,785.28
  4. Step 4: Simplify right side
    811,179.84x = 602,948,118,050.15
  5. Step 5: Solve for x
    x = 602,948,118,050.15/811,179.84
  6. Step 6: Final answer
    x = 743,297.71

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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.