Home / 1,123,658.88-1,550,269.44-639,881.04

Finding the Fourth Proportional to 1,123,658.88, 1,550,269.44 and 639,881.04

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Solution

The fourth proportional to 1,123,658.88, 1,550,269.44 and 639,881.04 is: 882,819.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,658.88 : 1,550,269.44 = 639,881.04 : x
  2. Step 2: Convert to fraction form
    1,123,658.88/1,550,269.44 = 639,881.04/x
  3. Step 3: Cross multiply
    1,123,658.88x = 1,550,269.44 × 639,881.04
  4. Step 4: Simplify right side
    1,123,658.88x = 991,988,021,547.42
  5. Step 5: Solve for x
    x = 991,988,021,547.42/1,123,658.88
  6. Step 6: Final answer
    x = 882,819.55

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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.