Home / 807,836.40-1,211,171.40-452,959.20

Finding the Fourth Proportional to 807,836.40, 1,211,171.40 and 452,959.20

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Solution

The fourth proportional to 807,836.40, 1,211,171.40 and 452,959.20 is: 679,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,836.40 : 1,211,171.40 = 452,959.20 : x
  2. Step 2: Convert to fraction form
    807,836.40/1,211,171.40 = 452,959.20/x
  3. Step 3: Cross multiply
    807,836.40x = 1,211,171.40 × 452,959.20
  4. Step 4: Simplify right side
    807,836.40x = 548,611,228,406.88
  5. Step 5: Solve for x
    x = 548,611,228,406.88/807,836.40
  6. Step 6: Final answer
    x = 679,111.80

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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.