Home / 627,401.85-865,820.03-340,921.95

Finding the Fourth Proportional to 627,401.85, 865,820.03 and 340,921.95

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Solution

The fourth proportional to 627,401.85, 865,820.03 and 340,921.95 is: 470,475.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,401.85 : 865,820.03 = 340,921.95 : x
  2. Step 2: Convert to fraction form
    627,401.85/865,820.03 = 340,921.95/x
  3. Step 3: Cross multiply
    627,401.85x = 865,820.03 × 340,921.95
  4. Step 4: Simplify right side
    627,401.85x = 295,177,051,272.05
  5. Step 5: Solve for x
    x = 295,177,051,272.05/627,401.85
  6. Step 6: Final answer
    x = 470,475.26

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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.