Home / 790,947.35-1,091,507.00-428,371.20

Finding the Fourth Proportional to 790,947.35, 1,091,507.00 and 428,371.20

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Solution

The fourth proportional to 790,947.35, 1,091,507.00 and 428,371.20 is: 591,152.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,947.35 : 1,091,507.00 = 428,371.20 : x
  2. Step 2: Convert to fraction form
    790,947.35/1,091,507.00 = 428,371.20/x
  3. Step 3: Cross multiply
    790,947.35x = 1,091,507.00 × 428,371.20
  4. Step 4: Simplify right side
    790,947.35x = 467,570,161,256.54
  5. Step 5: Solve for x
    x = 467,570,161,256.54/790,947.35
  6. Step 6: Final answer
    x = 591,152.07

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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.