Home / 1,123,648.63-1,550,255.29-639,870.73

Finding the Fourth Proportional to 1,123,648.63, 1,550,255.29 and 639,870.73

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Solution

The fourth proportional to 1,123,648.63, 1,550,255.29 and 639,870.73 is: 882,805.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,648.63 : 1,550,255.29 = 639,870.73 : x
  2. Step 2: Convert to fraction form
    1,123,648.63/1,550,255.29 = 639,870.73/x
  3. Step 3: Cross multiply
    1,123,648.63x = 1,550,255.29 × 639,870.73
  4. Step 4: Simplify right side
    1,123,648.63x = 991,962,984,098.66
  5. Step 5: Solve for x
    x = 991,962,984,098.66/1,123,648.63
  6. Step 6: Final answer
    x = 882,805.32

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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.