Home / 1,208,654.39-1,667,943.90-664,831.55

Finding the Fourth Proportional to 1,208,654.39, 1,667,943.90 and 664,831.55

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Solution

The fourth proportional to 1,208,654.39, 1,667,943.90 and 664,831.55 is: 917,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,654.39 : 1,667,943.90 = 664,831.55 : x
  2. Step 2: Convert to fraction form
    1,208,654.39/1,667,943.90 = 664,831.55/x
  3. Step 3: Cross multiply
    1,208,654.39x = 1,667,943.90 × 664,831.55
  4. Step 4: Simplify right side
    1,208,654.39x = 1,108,901,720,010.33
  5. Step 5: Solve for x
    x = 1,108,901,720,010.33/1,208,654.39
  6. Step 6: Final answer
    x = 917,468.00

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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.