Home / 638,344.13-880,920.83-351,874.46

Finding the Fourth Proportional to 638,344.13, 880,920.83 and 351,874.46

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Solution

The fourth proportional to 638,344.13, 880,920.83 and 351,874.46 is: 485,590.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,344.13 : 880,920.83 = 351,874.46 : x
  2. Step 2: Convert to fraction form
    638,344.13/880,920.83 = 351,874.46/x
  3. Step 3: Cross multiply
    638,344.13x = 880,920.83 × 351,874.46
  4. Step 4: Simplify right side
    638,344.13x = 309,973,544,440.99
  5. Step 5: Solve for x
    x = 309,973,544,440.99/638,344.13
  6. Step 6: Final answer
    x = 485,590.03

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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.