Home / 658,789.36-988,242.39-185,478.82

Finding the Fourth Proportional to 658,789.36, 988,242.39 and 185,478.82

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Solution

The fourth proportional to 658,789.36, 988,242.39 and 185,478.82 is: 278,234.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,789.36 : 988,242.39 = 185,478.82 : x
  2. Step 2: Convert to fraction form
    658,789.36/988,242.39 = 185,478.82/x
  3. Step 3: Cross multiply
    658,789.36x = 988,242.39 × 185,478.82
  4. Step 4: Simplify right side
    658,789.36x = 183,298,032,371.18
  5. Step 5: Solve for x
    x = 183,298,032,371.18/658,789.36
  6. Step 6: Final answer
    x = 278,234.66

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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.