Home / 1,208,432.52-1,667,679.71-664,610.40

Finding the Fourth Proportional to 1,208,432.52, 1,667,679.71 and 664,610.40

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Solution

The fourth proportional to 1,208,432.52, 1,667,679.71 and 664,610.40 is: 917,185.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,432.52 : 1,667,679.71 = 664,610.40 : x
  2. Step 2: Convert to fraction form
    1,208,432.52/1,667,679.71 = 664,610.40/x
  3. Step 3: Cross multiply
    1,208,432.52x = 1,667,679.71 × 664,610.40
  4. Step 4: Simplify right side
    1,208,432.52x = 1,108,357,275,811.93
  5. Step 5: Solve for x
    x = 1,108,357,275,811.93/1,208,432.52
  6. Step 6: Final answer
    x = 917,185.91

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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.