Home / 987,227.35-1,479,721.55-453,645.82

Finding the Fourth Proportional to 987,227.35, 1,479,721.55 and 453,645.82

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Solution

The fourth proportional to 987,227.35, 1,479,721.55 and 453,645.82 is: 679,954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,227.35 : 1,479,721.55 = 453,645.82 : x
  2. Step 2: Convert to fraction form
    987,227.35/1,479,721.55 = 453,645.82/x
  3. Step 3: Cross multiply
    987,227.35x = 1,479,721.55 × 453,645.82
  4. Step 4: Simplify right side
    987,227.35x = 671,269,489,953.89
  5. Step 5: Solve for x
    x = 671,269,489,953.89/987,227.35
  6. Step 6: Final answer
    x = 679,954.31

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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.