Home / 662,660.20-994,155.90-213,423.40

Finding the Fourth Proportional to 662,660.20, 994,155.90 and 213,423.40

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Solution

The fourth proportional to 662,660.20, 994,155.90 and 213,423.40 is: 320,188.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,660.20 : 994,155.90 = 213,423.40 : x
  2. Step 2: Convert to fraction form
    662,660.20/994,155.90 = 213,423.40/x
  3. Step 3: Cross multiply
    662,660.20x = 994,155.90 × 213,423.40
  4. Step 4: Simplify right side
    662,660.20x = 212,176,132,308.06
  5. Step 5: Solve for x
    x = 212,176,132,308.06/662,660.20
  6. Step 6: Final answer
    x = 320,188.43

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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.