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Finding the Fourth Proportional to 634,799.36, 876,019.84 and 359,169.28

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Solution

The fourth proportional to 634,799.36, 876,019.84 and 359,169.28 is: 495,651.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,799.36 : 876,019.84 = 359,169.28 : x
  2. Step 2: Convert to fraction form
    634,799.36/876,019.84 = 359,169.28/x
  3. Step 3: Cross multiply
    634,799.36x = 876,019.84 × 359,169.28
  4. Step 4: Simplify right side
    634,799.36x = 314,639,415,198.52
  5. Step 5: Solve for x
    x = 314,639,415,198.52/634,799.36
  6. Step 6: Final answer
    x = 495,651.75

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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.