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Finding the Fourth Proportional to 655,750.45, 983,758.27 and 276,672.12

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Solution

The fourth proportional to 655,750.45, 983,758.27 and 276,672.12 is: 415,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,750.45 : 983,758.27 = 276,672.12 : x
  2. Step 2: Convert to fraction form
    655,750.45/983,758.27 = 276,672.12/x
  3. Step 3: Cross multiply
    655,750.45x = 983,758.27 × 276,672.12
  4. Step 4: Simplify right side
    655,750.45x = 272,178,486,128.43
  5. Step 5: Solve for x
    x = 272,178,486,128.43/655,750.45
  6. Step 6: Final answer
    x = 415,064.13

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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.