Home / 680,681.88-1,020,902.54-254,122.11

Finding the Fourth Proportional to 680,681.88, 1,020,902.54 and 254,122.11

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Solution

The fourth proportional to 680,681.88, 1,020,902.54 and 254,122.11 is: 381,138.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,681.88 : 1,020,902.54 = 254,122.11 : x
  2. Step 2: Convert to fraction form
    680,681.88/1,020,902.54 = 254,122.11/x
  3. Step 3: Cross multiply
    680,681.88x = 1,020,902.54 × 254,122.11
  4. Step 4: Simplify right side
    680,681.88x = 259,433,906,298.55
  5. Step 5: Solve for x
    x = 259,433,906,298.55/680,681.88
  6. Step 6: Final answer
    x = 381,138.26

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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.