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Finding the Fourth Proportional to 627,012.22, 865,278.52 and 368,898.89

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Solution

The fourth proportional to 627,012.22, 865,278.52 and 368,898.89 is: 509,081.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,012.22 : 865,278.52 = 368,898.89 : x
  2. Step 2: Convert to fraction form
    627,012.22/865,278.52 = 368,898.89/x
  3. Step 3: Cross multiply
    627,012.22x = 865,278.52 × 368,898.89
  4. Step 4: Simplify right side
    627,012.22x = 319,200,284,140.35
  5. Step 5: Solve for x
    x = 319,200,284,140.35/627,012.22
  6. Step 6: Final answer
    x = 509,081.44

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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.