Home / 778,104.64-1,073,871.30-456,087.12

Finding the Fourth Proportional to 778,104.64, 1,073,871.30 and 456,087.12

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Solution

The fourth proportional to 778,104.64, 1,073,871.30 and 456,087.12 is: 629,451.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,104.64 : 1,073,871.30 = 456,087.12 : x
  2. Step 2: Convert to fraction form
    778,104.64/1,073,871.30 = 456,087.12/x
  3. Step 3: Cross multiply
    778,104.64x = 1,073,871.30 × 456,087.12
  4. Step 4: Simplify right side
    778,104.64x = 489,778,868,467.66
  5. Step 5: Solve for x
    x = 489,778,868,467.66/778,104.64
  6. Step 6: Final answer
    x = 629,451.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.