Home / 438,934.24-605,750-257,654.08

Finding the Fourth Proportional to 438,934.24, 605,750 and 257,654.08

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Solution

The fourth proportional to 438,934.24, 605,750 and 257,654.08 is: 355,574.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,934.24 : 605,750 = 257,654.08 : x
  2. Step 2: Convert to fraction form
    438,934.24/605,750 = 257,654.08/x
  3. Step 3: Cross multiply
    438,934.24x = 605,750 × 257,654.08
  4. Step 4: Simplify right side
    438,934.24x = 156,073,958,960
  5. Step 5: Solve for x
    x = 156,073,958,960/438,934.24
  6. Step 6: Final answer
    x = 355,574.81

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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.