Home / 662,988.38-994,507.20-213,715.76

Finding the Fourth Proportional to 662,988.38, 994,507.20 and 213,715.76

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Solution

The fourth proportional to 662,988.38, 994,507.20 and 213,715.76 is: 320,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,988.38 : 994,507.20 = 213,715.76 : x
  2. Step 2: Convert to fraction form
    662,988.38/994,507.20 = 213,715.76/x
  3. Step 3: Cross multiply
    662,988.38x = 994,507.20 × 213,715.76
  4. Step 4: Simplify right side
    662,988.38x = 212,541,857,100.94
  5. Step 5: Solve for x
    x = 212,541,857,100.94/662,988.38
  6. Step 6: Final answer
    x = 320,581.57

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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.