Home / 521,002.13-718,982.93-282,538.13

Finding the Fourth Proportional to 521,002.13, 718,982.93 and 282,538.13

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Solution

The fourth proportional to 521,002.13, 718,982.93 and 282,538.13 is: 389,902.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,002.13 : 718,982.93 = 282,538.13 : x
  2. Step 2: Convert to fraction form
    521,002.13/718,982.93 = 282,538.13/x
  3. Step 3: Cross multiply
    521,002.13x = 718,982.93 × 282,538.13
  4. Step 4: Simplify right side
    521,002.13x = 203,140,089,655.55
  5. Step 5: Solve for x
    x = 203,140,089,655.55/521,002.13
  6. Step 6: Final answer
    x = 389,902.61

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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.