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Finding the Fourth Proportional to 627,588.16, 866,067.60 and 359,368

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Solution

The fourth proportional to 627,588.16, 866,067.60 and 359,368 is: 495,925.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,588.16 : 866,067.60 = 359,368 : x
  2. Step 2: Convert to fraction form
    627,588.16/866,067.60 = 359,368/x
  3. Step 3: Cross multiply
    627,588.16x = 866,067.60 × 359,368
  4. Step 4: Simplify right side
    627,588.16x = 311,236,981,276.80
  5. Step 5: Solve for x
    x = 311,236,981,276.80/627,588.16
  6. Step 6: Final answer
    x = 495,925.51

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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.