Home / 386,982.36-580,697.64-162,322.80

Finding the Fourth Proportional to 386,982.36, 580,697.64 and 162,322.80

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Solution

The fourth proportional to 386,982.36, 580,697.64 and 162,322.80 is: 243,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,982.36 : 580,697.64 = 162,322.80 : x
  2. Step 2: Convert to fraction form
    386,982.36/580,697.64 = 162,322.80/x
  3. Step 3: Cross multiply
    386,982.36x = 580,697.64 × 162,322.80
  4. Step 4: Simplify right side
    386,982.36x = 94,260,466,878.19
  5. Step 5: Solve for x
    x = 94,260,466,878.19/386,982.36
  6. Step 6: Final answer
    x = 243,578.20

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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.