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Finding the Fourth Proportional to 636,859.44, 878,866 and 350,373.38

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Solution

The fourth proportional to 636,859.44, 878,866 and 350,373.38 is: 483,515.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,859.44 : 878,866 = 350,373.38 : x
  2. Step 2: Convert to fraction form
    636,859.44/878,866 = 350,373.38/x
  3. Step 3: Cross multiply
    636,859.44x = 878,866 × 350,373.38
  4. Step 4: Simplify right side
    636,859.44x = 307,931,250,987.08
  5. Step 5: Solve for x
    x = 307,931,250,987.08/636,859.44
  6. Step 6: Final answer
    x = 483,515.25

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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.