Home / 409,734.12-565,387.44-248,628.36

Finding the Fourth Proportional to 409,734.12, 565,387.44 and 248,628.36

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Solution

The fourth proportional to 409,734.12, 565,387.44 and 248,628.36 is: 343,079.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,734.12 : 565,387.44 = 248,628.36 : x
  2. Step 2: Convert to fraction form
    409,734.12/565,387.44 = 248,628.36/x
  3. Step 3: Cross multiply
    409,734.12x = 565,387.44 × 248,628.36
  4. Step 4: Simplify right side
    409,734.12x = 140,571,351,971.80
  5. Step 5: Solve for x
    x = 140,571,351,971.80/409,734.12
  6. Step 6: Final answer
    x = 343,079.44

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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.