Home / 1,208,261.19-1,667,343.36-664,419.90

Finding the Fourth Proportional to 1,208,261.19, 1,667,343.36 and 664,419.90

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Solution

The fourth proportional to 1,208,261.19, 1,667,343.36 and 664,419.90 is: 916,868.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,261.19 : 1,667,343.36 = 664,419.90 : x
  2. Step 2: Convert to fraction form
    1,208,261.19/1,667,343.36 = 664,419.90/x
  3. Step 3: Cross multiply
    1,208,261.19x = 1,667,343.36 × 664,419.90
  4. Step 4: Simplify right side
    1,208,261.19x = 1,107,816,108,516.86
  5. Step 5: Solve for x
    x = 1,107,816,108,516.86/1,208,261.19
  6. Step 6: Final answer
    x = 916,868.07

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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.