Home / 591,240.09-815,911.12-319,308.04

Finding the Fourth Proportional to 591,240.09, 815,911.12 and 319,308.04

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Solution

The fourth proportional to 591,240.09, 815,911.12 and 319,308.04 is: 440,644.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,240.09 : 815,911.12 = 319,308.04 : x
  2. Step 2: Convert to fraction form
    591,240.09/815,911.12 = 319,308.04/x
  3. Step 3: Cross multiply
    591,240.09x = 815,911.12 × 319,308.04
  4. Step 4: Simplify right side
    591,240.09x = 260,526,974,865.31
  5. Step 5: Solve for x
    x = 260,526,974,865.31/591,240.09
  6. Step 6: Final answer
    x = 440,644.98

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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.