Home / 1,123,659.09-1,550,269.68-639,881.19

Finding the Fourth Proportional to 1,123,659.09, 1,550,269.68 and 639,881.19

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Solution

The fourth proportional to 1,123,659.09, 1,550,269.68 and 639,881.19 is: 882,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,659.09 : 1,550,269.68 = 639,881.19 : x
  2. Step 2: Convert to fraction form
    1,123,659.09/1,550,269.68 = 639,881.19/x
  3. Step 3: Cross multiply
    1,123,659.09x = 1,550,269.68 × 639,881.19
  4. Step 4: Simplify right side
    1,123,659.09x = 991,988,407,659.32
  5. Step 5: Solve for x
    x = 991,988,407,659.32/1,123,659.09
  6. Step 6: Final answer
    x = 882,819.72

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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.