Home / 785,981.88-1,084,654.80-428,285.88

Finding the Fourth Proportional to 785,981.88, 1,084,654.80 and 428,285.88

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Solution

The fourth proportional to 785,981.88, 1,084,654.80 and 428,285.88 is: 591,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,981.88 : 1,084,654.80 = 428,285.88 : x
  2. Step 2: Convert to fraction form
    785,981.88/1,084,654.80 = 428,285.88/x
  3. Step 3: Cross multiply
    785,981.88x = 1,084,654.80 × 428,285.88
  4. Step 4: Simplify right side
    785,981.88x = 464,542,335,514.22
  5. Step 5: Solve for x
    x = 464,542,335,514.22/785,981.88
  6. Step 6: Final answer
    x = 591,034.41

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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.