Home / 689,812.08-1,034,370.26-209,947.82

Finding the Fourth Proportional to 689,812.08, 1,034,370.26 and 209,947.82

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Solution

The fourth proportional to 689,812.08, 1,034,370.26 and 209,947.82 is: 314,815.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,812.08 : 1,034,370.26 = 209,947.82 : x
  2. Step 2: Convert to fraction form
    689,812.08/1,034,370.26 = 209,947.82/x
  3. Step 3: Cross multiply
    689,812.08x = 1,034,370.26 × 209,947.82
  4. Step 4: Simplify right side
    689,812.08x = 217,163,781,159.83
  5. Step 5: Solve for x
    x = 217,163,781,159.83/689,812.08
  6. Step 6: Final answer
    x = 314,815.86

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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.