Home / 778,104.64-1,074,052.29-455,919.04

Finding the Fourth Proportional to 778,104.64, 1,074,052.29 and 455,919.04

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Solution

The fourth proportional to 778,104.64, 1,074,052.29 and 455,919.04 is: 629,325.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,104.64 : 1,074,052.29 = 455,919.04 : x
  2. Step 2: Convert to fraction form
    778,104.64/1,074,052.29 = 455,919.04/x
  3. Step 3: Cross multiply
    778,104.64x = 1,074,052.29 × 455,919.04
  4. Step 4: Simplify right side
    778,104.64x = 489,680,888,966.60
  5. Step 5: Solve for x
    x = 489,680,888,966.60/778,104.64
  6. Step 6: Final answer
    x = 629,325.24

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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.