Home / 668,836.20-1,003,254.30-416,893.80

Finding the Fourth Proportional to 668,836.20, 1,003,254.30 and 416,893.80

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Solution

The fourth proportional to 668,836.20, 1,003,254.30 and 416,893.80 is: 625,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,836.20 : 1,003,254.30 = 416,893.80 : x
  2. Step 2: Convert to fraction form
    668,836.20/1,003,254.30 = 416,893.80/x
  3. Step 3: Cross multiply
    668,836.20x = 1,003,254.30 × 416,893.80
  4. Step 4: Simplify right side
    668,836.20x = 418,250,497,493.34
  5. Step 5: Solve for x
    x = 418,250,497,493.34/668,836.20
  6. Step 6: Final answer
    x = 625,340.70

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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.