Home / 790,655.55-1,091,091.36-428,076.48

Finding the Fourth Proportional to 790,655.55, 1,091,091.36 and 428,076.48

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Solution

The fourth proportional to 790,655.55, 1,091,091.36 and 428,076.48 is: 590,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,655.55 : 1,091,091.36 = 428,076.48 : x
  2. Step 2: Convert to fraction form
    790,655.55/1,091,091.36 = 428,076.48/x
  3. Step 3: Cross multiply
    790,655.55x = 1,091,091.36 × 428,076.48
  4. Step 4: Simplify right side
    790,655.55x = 467,070,548,747.21
  5. Step 5: Solve for x
    x = 467,070,548,747.21/790,655.55
  6. Step 6: Final answer
    x = 590,738.34

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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.