Home / 806,447.20-1,207,921.20-666,479.20

Finding the Fourth Proportional to 806,447.20, 1,207,921.20 and 666,479.20

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Solution

The fourth proportional to 806,447.20, 1,207,921.20 and 666,479.20 is: 998,272.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,447.20 : 1,207,921.20 = 666,479.20 : x
  2. Step 2: Convert to fraction form
    806,447.20/1,207,921.20 = 666,479.20/x
  3. Step 3: Cross multiply
    806,447.20x = 1,207,921.20 × 666,479.20
  4. Step 4: Simplify right side
    806,447.20x = 805,054,355,039.04
  5. Step 5: Solve for x
    x = 805,054,355,039.04/806,447.20
  6. Step 6: Final answer
    x = 998,272.86

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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.