Home / 836,429.10-1,154,273.40-454,455.78

Finding the Fourth Proportional to 836,429.10, 1,154,273.40 and 454,455.78

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Solution

The fourth proportional to 836,429.10, 1,154,273.40 and 454,455.78 is: 627,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,429.10 : 1,154,273.40 = 454,455.78 : x
  2. Step 2: Convert to fraction form
    836,429.10/1,154,273.40 = 454,455.78/x
  3. Step 3: Cross multiply
    836,429.10x = 1,154,273.40 × 454,455.78
  4. Step 4: Simplify right side
    836,429.10x = 524,566,218,330.25
  5. Step 5: Solve for x
    x = 524,566,218,330.25/836,429.10
  6. Step 6: Final answer
    x = 627,149.65

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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.