Home / 401,726.40-602,556.96-135,481.20

Finding the Fourth Proportional to 401,726.40, 602,556.96 and 135,481.20

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Solution

The fourth proportional to 401,726.40, 602,556.96 and 135,481.20 is: 203,210.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,726.40 : 602,556.96 = 135,481.20 : x
  2. Step 2: Convert to fraction form
    401,726.40/602,556.96 = 135,481.20/x
  3. Step 3: Cross multiply
    401,726.40x = 602,556.96 × 135,481.20
  4. Step 4: Simplify right side
    401,726.40x = 81,635,140,009.15
  5. Step 5: Solve for x
    x = 81,635,140,009.15/401,726.40
  6. Step 6: Final answer
    x = 203,210.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.