Home / 1,208,061.52-1,667,125.92-664,206.64

Finding the Fourth Proportional to 1,208,061.52, 1,667,125.92 and 664,206.64

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Solution

The fourth proportional to 1,208,061.52, 1,667,125.92 and 664,206.64 is: 916,605.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,061.52 : 1,667,125.92 = 664,206.64 : x
  2. Step 2: Convert to fraction form
    1,208,061.52/1,667,125.92 = 664,206.64/x
  3. Step 3: Cross multiply
    1,208,061.52x = 1,667,125.92 × 664,206.64
  4. Step 4: Simplify right side
    1,208,061.52x = 1,107,316,105,780.11
  5. Step 5: Solve for x
    x = 1,107,316,105,780.11/1,208,061.52
  6. Step 6: Final answer
    x = 916,605.73

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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.