Home / 790,843.31-1,091,364.34-428,267.56

Finding the Fourth Proportional to 790,843.31, 1,091,364.34 and 428,267.56

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Solution

The fourth proportional to 790,843.31, 1,091,364.34 and 428,267.56 is: 591,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,843.31 : 1,091,364.34 = 428,267.56 : x
  2. Step 2: Convert to fraction form
    790,843.31/1,091,364.34 = 428,267.56/x
  3. Step 3: Cross multiply
    790,843.31x = 1,091,364.34 × 428,267.56
  4. Step 4: Simplify right side
    790,843.31x = 467,395,937,505.99
  5. Step 5: Solve for x
    x = 467,395,937,505.99/790,843.31
  6. Step 6: Final answer
    x = 591,009.54

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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.