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Finding the Fourth Proportional to 627,073.03, 865,363.26 and 340,597.90

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Solution

The fourth proportional to 627,073.03, 865,363.26 and 340,597.90 is: 470,026.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,073.03 : 865,363.26 = 340,597.90 : x
  2. Step 2: Convert to fraction form
    627,073.03/865,363.26 = 340,597.90/x
  3. Step 3: Cross multiply
    627,073.03x = 865,363.26 × 340,597.90
  4. Step 4: Simplify right side
    627,073.03x = 294,740,909,093.15
  5. Step 5: Solve for x
    x = 294,740,909,093.15/627,073.03
  6. Step 6: Final answer
    x = 470,026.45

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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.