Home / 1,123,768.32-1,550,512.44-664,861.20

Finding the Fourth Proportional to 1,123,768.32, 1,550,512.44 and 664,861.20

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Solution

The fourth proportional to 1,123,768.32, 1,550,512.44 and 664,861.20 is: 917,338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,768.32 : 1,550,512.44 = 664,861.20 : x
  2. Step 2: Convert to fraction form
    1,123,768.32/1,550,512.44 = 664,861.20/x
  3. Step 3: Cross multiply
    1,123,768.32x = 1,550,512.44 × 664,861.20
  4. Step 4: Simplify right side
    1,123,768.32x = 1,030,875,561,473.33
  5. Step 5: Solve for x
    x = 1,030,875,561,473.33/1,123,768.32
  6. Step 6: Final answer
    x = 917,338.16

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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.