Home / 1,988,917.98-2,981,767.95-621,988.41

Finding the Fourth Proportional to 1,988,917.98, 2,981,767.95 and 621,988.41

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Solution

The fourth proportional to 1,988,917.98, 2,981,767.95 and 621,988.41 is: 932,479.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,917.98 : 2,981,767.95 = 621,988.41 : x
  2. Step 2: Convert to fraction form
    1,988,917.98/2,981,767.95 = 621,988.41/x
  3. Step 3: Cross multiply
    1,988,917.98x = 2,981,767.95 × 621,988.41
  4. Step 4: Simplify right side
    1,988,917.98x = 1,854,625,117,391.09
  5. Step 5: Solve for x
    x = 1,854,625,117,391.09/1,988,917.98
  6. Step 6: Final answer
    x = 932,479.44

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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.