Home / 790,943.76-1,091,493.60-428,358.48

Finding the Fourth Proportional to 790,943.76, 1,091,493.60 and 428,358.48

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Solution

The fourth proportional to 790,943.76, 1,091,493.60 and 428,358.48 is: 591,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,943.76 : 1,091,493.60 = 428,358.48 : x
  2. Step 2: Convert to fraction form
    790,943.76/1,091,493.60 = 428,358.48/x
  3. Step 3: Cross multiply
    790,943.76x = 1,091,493.60 × 428,358.48
  4. Step 4: Simplify right side
    790,943.76x = 467,550,539,425.73
  5. Step 5: Solve for x
    x = 467,550,539,425.73/790,943.76
  6. Step 6: Final answer
    x = 591,129.94

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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.