Home / 690,146.10-1,035,251.55-216,846.90

Finding the Fourth Proportional to 690,146.10, 1,035,251.55 and 216,846.90

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Solution

The fourth proportional to 690,146.10, 1,035,251.55 and 216,846.90 is: 325,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,146.10 : 1,035,251.55 = 216,846.90 : x
  2. Step 2: Convert to fraction form
    690,146.10/1,035,251.55 = 216,846.90/x
  3. Step 3: Cross multiply
    690,146.10x = 1,035,251.55 × 216,846.90
  4. Step 4: Simplify right side
    690,146.10x = 224,491,089,337.70
  5. Step 5: Solve for x
    x = 224,491,089,337.70/690,146.10
  6. Step 6: Final answer
    x = 325,280.53

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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.