Home / 680,302.70-1,020,601.65-206,975.75

Finding the Fourth Proportional to 680,302.70, 1,020,601.65 and 206,975.75

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Solution

The fourth proportional to 680,302.70, 1,020,601.65 and 206,975.75 is: 310,508.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,302.70 : 1,020,601.65 = 206,975.75 : x
  2. Step 2: Convert to fraction form
    680,302.70/1,020,601.65 = 206,975.75/x
  3. Step 3: Cross multiply
    680,302.70x = 1,020,601.65 × 206,975.75
  4. Step 4: Simplify right side
    680,302.70x = 211,239,791,959.99
  5. Step 5: Solve for x
    x = 211,239,791,959.99/680,302.70
  6. Step 6: Final answer
    x = 310,508.53

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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.