Home / 680,609.50-1,020,942.40-200,837.30

Finding the Fourth Proportional to 680,609.50, 1,020,942.40 and 200,837.30

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Solution

The fourth proportional to 680,609.50, 1,020,942.40 and 200,837.30 is: 301,264.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,609.50 : 1,020,942.40 = 200,837.30 : x
  2. Step 2: Convert to fraction form
    680,609.50/1,020,942.40 = 200,837.30/x
  3. Step 3: Cross multiply
    680,609.50x = 1,020,942.40 × 200,837.30
  4. Step 4: Simplify right side
    680,609.50x = 205,043,315,071.52
  5. Step 5: Solve for x
    x = 205,043,315,071.52/680,609.50
  6. Step 6: Final answer
    x = 301,264.26

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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.