Home / 644,708.10-966,721.95-218,097.30

Finding the Fourth Proportional to 644,708.10, 966,721.95 and 218,097.30

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Solution

The fourth proportional to 644,708.10, 966,721.95 and 218,097.30 is: 327,030.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,708.10 : 966,721.95 = 218,097.30 : x
  2. Step 2: Convert to fraction form
    644,708.10/966,721.95 = 218,097.30/x
  3. Step 3: Cross multiply
    644,708.10x = 966,721.95 × 218,097.30
  4. Step 4: Simplify right side
    644,708.10x = 210,839,447,145.74
  5. Step 5: Solve for x
    x = 210,839,447,145.74/644,708.10
  6. Step 6: Final answer
    x = 327,030.86

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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.