Home / 644,565.96-966,900.78-218,097.72

Finding the Fourth Proportional to 644,565.96, 966,900.78 and 218,097.72

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Solution

The fourth proportional to 644,565.96, 966,900.78 and 218,097.72 is: 327,164.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,565.96 : 966,900.78 = 218,097.72 : x
  2. Step 2: Convert to fraction form
    644,565.96/966,900.78 = 218,097.72/x
  3. Step 3: Cross multiply
    644,565.96x = 966,900.78 × 218,097.72
  4. Step 4: Simplify right side
    644,565.96x = 210,878,855,584.22
  5. Step 5: Solve for x
    x = 210,878,855,584.22/644,565.96
  6. Step 6: Final answer
    x = 327,164.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.