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Finding the Fourth Proportional to 587,072.90, 810,146.90 and 345,371.04

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Solution

The fourth proportional to 587,072.90, 810,146.90 and 345,371.04 is: 476,603.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,072.90 : 810,146.90 = 345,371.04 : x
  2. Step 2: Convert to fraction form
    587,072.90/810,146.90 = 345,371.04/x
  3. Step 3: Cross multiply
    587,072.90x = 810,146.90 × 345,371.04
  4. Step 4: Simplify right side
    587,072.90x = 279,801,276,690.74
  5. Step 5: Solve for x
    x = 279,801,276,690.74/587,072.90
  6. Step 6: Final answer
    x = 476,603.97

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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.