Home / 785,872.75-1,084,504.41-428,176.75

Finding the Fourth Proportional to 785,872.75, 1,084,504.41 and 428,176.75

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Solution

The fourth proportional to 785,872.75, 1,084,504.41 and 428,176.75 is: 590,883.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,872.75 : 1,084,504.41 = 428,176.75 : x
  2. Step 2: Convert to fraction form
    785,872.75/1,084,504.41 = 428,176.75/x
  3. Step 3: Cross multiply
    785,872.75x = 1,084,504.41 × 428,176.75
  4. Step 4: Simplify right side
    785,872.75x = 464,359,573,634.47
  5. Step 5: Solve for x
    x = 464,359,573,634.47/785,872.75
  6. Step 6: Final answer
    x = 590,883.92

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1.5x scale

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.