Home / 1,123,647.63-1,550,253.92-639,869.73

Finding the Fourth Proportional to 1,123,647.63, 1,550,253.92 and 639,869.73

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Solution

The fourth proportional to 1,123,647.63, 1,550,253.92 and 639,869.73 is: 882,803.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,647.63 : 1,550,253.92 = 639,869.73 : x
  2. Step 2: Convert to fraction form
    1,123,647.63/1,550,253.92 = 639,869.73/x
  3. Step 3: Cross multiply
    1,123,647.63x = 1,550,253.92 × 639,869.73
  4. Step 4: Simplify right side
    1,123,647.63x = 991,960,554,022.49
  5. Step 5: Solve for x
    x = 991,960,554,022.49/1,123,647.63
  6. Step 6: Final answer
    x = 882,803.94

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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.