Home / 689,626.11-1,034,478.02-209,869.52

Finding the Fourth Proportional to 689,626.11, 1,034,478.02 and 209,869.52

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Solution

The fourth proportional to 689,626.11, 1,034,478.02 and 209,869.52 is: 314,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,626.11 : 1,034,478.02 = 209,869.52 : x
  2. Step 2: Convert to fraction form
    689,626.11/1,034,478.02 = 209,869.52/x
  3. Step 3: Cross multiply
    689,626.11x = 1,034,478.02 × 209,869.52
  4. Step 4: Simplify right side
    689,626.11x = 217,105,399,286.21
  5. Step 5: Solve for x
    x = 217,105,399,286.21/689,626.11
  6. Step 6: Final answer
    x = 314,816.10

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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.