Home / 785,747.25-1,084,331.21-428,051.25

Finding the Fourth Proportional to 785,747.25, 1,084,331.21 and 428,051.25

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Solution

The fourth proportional to 785,747.25, 1,084,331.21 and 428,051.25 is: 590,710.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,747.25 : 1,084,331.21 = 428,051.25 : x
  2. Step 2: Convert to fraction form
    785,747.25/1,084,331.21 = 428,051.25/x
  3. Step 3: Cross multiply
    785,747.25x = 1,084,331.21 × 428,051.25
  4. Step 4: Simplify right side
    785,747.25x = 464,149,327,714.26
  5. Step 5: Solve for x
    x = 464,149,327,714.26/785,747.25
  6. Step 6: Final answer
    x = 590,710.73

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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.