Home / 668,607.19-1,002,943.19-219,288.31

Finding the Fourth Proportional to 668,607.19, 1,002,943.19 and 219,288.31

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Solution

The fourth proportional to 668,607.19, 1,002,943.19 and 219,288.31 is: 328,943.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,607.19 : 1,002,943.19 = 219,288.31 : x
  2. Step 2: Convert to fraction form
    668,607.19/1,002,943.19 = 219,288.31/x
  3. Step 3: Cross multiply
    668,607.19x = 1,002,943.19 × 219,288.31
  4. Step 4: Simplify right side
    668,607.19x = 219,933,717,161.11
  5. Step 5: Solve for x
    x = 219,933,717,161.11/668,607.19
  6. Step 6: Final answer
    x = 328,943.09

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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.