Home / 689,627.11-1,034,479.52-209,870.52

Finding the Fourth Proportional to 689,627.11, 1,034,479.52 and 209,870.52

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Solution

The fourth proportional to 689,627.11, 1,034,479.52 and 209,870.52 is: 314,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,627.11 : 1,034,479.52 = 209,870.52 : x
  2. Step 2: Convert to fraction form
    689,627.11/1,034,479.52 = 209,870.52/x
  3. Step 3: Cross multiply
    689,627.11x = 1,034,479.52 × 209,870.52
  4. Step 4: Simplify right side
    689,627.11x = 217,106,754,791.75
  5. Step 5: Solve for x
    x = 217,106,754,791.75/689,627.11
  6. Step 6: Final answer
    x = 314,817.60

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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.