Home / 319,301.72-479,177.03-288,775.91

Finding the Fourth Proportional to 319,301.72, 479,177.03 and 288,775.91

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Solution

The fourth proportional to 319,301.72, 479,177.03 and 288,775.91 is: 433,366.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,301.72 : 479,177.03 = 288,775.91 : x
  2. Step 2: Convert to fraction form
    319,301.72/479,177.03 = 288,775.91/x
  3. Step 3: Cross multiply
    319,301.72x = 479,177.03 × 288,775.91
  4. Step 4: Simplify right side
    319,301.72x = 138,374,782,643.41
  5. Step 5: Solve for x
    x = 138,374,782,643.41/319,301.72
  6. Step 6: Final answer
    x = 433,366.85

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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.