Home / 621,112.14-857,165.16-349,265.61

Finding the Fourth Proportional to 621,112.14, 857,165.16 and 349,265.61

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Solution

The fourth proportional to 621,112.14, 857,165.16 and 349,265.61 is: 482,003.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,112.14 : 857,165.16 = 349,265.61 : x
  2. Step 2: Convert to fraction form
    621,112.14/857,165.16 = 349,265.61/x
  3. Step 3: Cross multiply
    621,112.14x = 857,165.16 × 349,265.61
  4. Step 4: Simplify right side
    621,112.14x = 299,378,312,478.15
  5. Step 5: Solve for x
    x = 299,378,312,478.15/621,112.14
  6. Step 6: Final answer
    x = 482,003.64

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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.