Home / 689,624.61-1,034,475.77-209,868.02

Finding the Fourth Proportional to 689,624.61, 1,034,475.77 and 209,868.02

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Solution

The fourth proportional to 689,624.61, 1,034,475.77 and 209,868.02 is: 314,813.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,624.61 : 1,034,475.77 = 209,868.02 : x
  2. Step 2: Convert to fraction form
    689,624.61/1,034,475.77 = 209,868.02/x
  3. Step 3: Cross multiply
    689,624.61x = 1,034,475.77 × 209,868.02
  4. Step 4: Simplify right side
    689,624.61x = 217,103,375,366.16
  5. Step 5: Solve for x
    x = 217,103,375,366.16/689,624.61
  6. Step 6: Final answer
    x = 314,813.85

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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.