Home / 662,935.12-914,845.72-361,129.20

Finding the Fourth Proportional to 662,935.12, 914,845.72 and 361,129.20

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Solution

The fourth proportional to 662,935.12, 914,845.72 and 361,129.20 is: 498,355.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,935.12 : 914,845.72 = 361,129.20 : x
  2. Step 2: Convert to fraction form
    662,935.12/914,845.72 = 361,129.20/x
  3. Step 3: Cross multiply
    662,935.12x = 914,845.72 × 361,129.20
  4. Step 4: Simplify right side
    662,935.12x = 330,377,502,987.02
  5. Step 5: Solve for x
    x = 330,377,502,987.02/662,935.12
  6. Step 6: Final answer
    x = 498,355.71

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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.