Home / 635,405.20-876,865.26-348,931.28

Finding the Fourth Proportional to 635,405.20, 876,865.26 and 348,931.28

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Solution

The fourth proportional to 635,405.20, 876,865.26 and 348,931.28 is: 481,528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,405.20 : 876,865.26 = 348,931.28 : x
  2. Step 2: Convert to fraction form
    635,405.20/876,865.26 = 348,931.28/x
  3. Step 3: Cross multiply
    635,405.20x = 876,865.26 × 348,931.28
  4. Step 4: Simplify right side
    635,405.20x = 305,965,717,559.33
  5. Step 5: Solve for x
    x = 305,965,717,559.33/635,405.20
  6. Step 6: Final answer
    x = 481,528.51

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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.