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Finding the Fourth Proportional to 836,950.60, 1,154,978.20 and 454,987

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Solution

The fourth proportional to 836,950.60, 1,154,978.20 and 454,987 is: 627,874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,950.60 : 1,154,978.20 = 454,987 : x
  2. Step 2: Convert to fraction form
    836,950.60/1,154,978.20 = 454,987/x
  3. Step 3: Cross multiply
    836,950.60x = 1,154,978.20 × 454,987
  4. Step 4: Simplify right side
    836,950.60x = 525,500,066,283.40
  5. Step 5: Solve for x
    x = 525,500,066,283.40/836,950.60
  6. Step 6: Final answer
    x = 627,874.65

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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.