Home / 438,427.69-655,741.78-258,083.42

Finding the Fourth Proportional to 438,427.69, 655,741.78 and 258,083.42

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Solution

The fourth proportional to 438,427.69, 655,741.78 and 258,083.42 is: 386,006.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,427.69 : 655,741.78 = 258,083.42 : x
  2. Step 2: Convert to fraction form
    438,427.69/655,741.78 = 258,083.42/x
  3. Step 3: Cross multiply
    438,427.69x = 655,741.78 × 258,083.42
  4. Step 4: Simplify right side
    438,427.69x = 169,236,077,295.37
  5. Step 5: Solve for x
    x = 169,236,077,295.37/438,427.69
  6. Step 6: Final answer
    x = 386,006.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.