Home / 644,701.10-966,711.45-218,090.30

Finding the Fourth Proportional to 644,701.10, 966,711.45 and 218,090.30

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Solution

The fourth proportional to 644,701.10, 966,711.45 and 218,090.30 is: 327,020.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,701.10 : 966,711.45 = 218,090.30 : x
  2. Step 2: Convert to fraction form
    644,701.10/966,711.45 = 218,090.30/x
  3. Step 3: Cross multiply
    644,701.10x = 966,711.45 × 218,090.30
  4. Step 4: Simplify right side
    644,701.10x = 210,830,390,143.94
  5. Step 5: Solve for x
    x = 210,830,390,143.94/644,701.10
  6. Step 6: Final answer
    x = 327,020.37

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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.