Home / 690,143.10-1,035,247.05-216,843.90

Finding the Fourth Proportional to 690,143.10, 1,035,247.05 and 216,843.90

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Solution

The fourth proportional to 690,143.10, 1,035,247.05 and 216,843.90 is: 325,276.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,143.10 : 1,035,247.05 = 216,843.90 : x
  2. Step 2: Convert to fraction form
    690,143.10/1,035,247.05 = 216,843.90/x
  3. Step 3: Cross multiply
    690,143.10x = 1,035,247.05 × 216,843.90
  4. Step 4: Simplify right side
    690,143.10x = 224,487,007,785.50
  5. Step 5: Solve for x
    x = 224,487,007,785.50/690,143.10
  6. Step 6: Final answer
    x = 325,276.03

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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.