Home / 668,732.20-1,002,887.81-219,348.58

Finding the Fourth Proportional to 668,732.20, 1,002,887.81 and 219,348.58

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Solution

The fourth proportional to 668,732.20, 1,002,887.81 and 219,348.58 is: 328,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,732.20 : 1,002,887.81 = 219,348.58 : x
  2. Step 2: Convert to fraction form
    668,732.20/1,002,887.81 = 219,348.58/x
  3. Step 3: Cross multiply
    668,732.20x = 1,002,887.81 × 219,348.58
  4. Step 4: Simplify right side
    668,732.20x = 219,982,018,325.52
  5. Step 5: Solve for x
    x = 219,982,018,325.52/668,732.20
  6. Step 6: Final answer
    x = 328,953.83

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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.