Home / 668,315.12-1,002,680.52-219,039.92

Finding the Fourth Proportional to 668,315.12, 1,002,680.52 and 219,039.92

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Solution

The fourth proportional to 668,315.12, 1,002,680.52 and 219,039.92 is: 328,628.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,315.12 : 1,002,680.52 = 219,039.92 : x
  2. Step 2: Convert to fraction form
    668,315.12/1,002,680.52 = 219,039.92/x
  3. Step 3: Cross multiply
    668,315.12x = 1,002,680.52 × 219,039.92
  4. Step 4: Simplify right side
    668,315.12x = 219,627,060,886.36
  5. Step 5: Solve for x
    x = 219,627,060,886.36/668,315.12
  6. Step 6: Final answer
    x = 328,628.00

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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.