Home / 628,165.15-867,354.48-482,740.57

Finding the Fourth Proportional to 628,165.15, 867,354.48 and 482,740.57

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Solution

The fourth proportional to 628,165.15, 867,354.48 and 482,740.57 is: 666,555.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,165.15 : 867,354.48 = 482,740.57 : x
  2. Step 2: Convert to fraction form
    628,165.15/867,354.48 = 482,740.57/x
  3. Step 3: Cross multiply
    628,165.15x = 867,354.48 × 482,740.57
  4. Step 4: Simplify right side
    628,165.15x = 418,707,196,067.25
  5. Step 5: Solve for x
    x = 418,707,196,067.25/628,165.15
  6. Step 6: Final answer
    x = 666,555.91

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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.