Home / 403,723.20-605,584.80-262,718.40

Finding the Fourth Proportional to 403,723.20, 605,584.80 and 262,718.40

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Solution

The fourth proportional to 403,723.20, 605,584.80 and 262,718.40 is: 394,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,723.20 : 605,584.80 = 262,718.40 : x
  2. Step 2: Convert to fraction form
    403,723.20/605,584.80 = 262,718.40/x
  3. Step 3: Cross multiply
    403,723.20x = 605,584.80 × 262,718.40
  4. Step 4: Simplify right side
    403,723.20x = 159,098,269,720.32
  5. Step 5: Solve for x
    x = 159,098,269,720.32/403,723.20
  6. Step 6: Final answer
    x = 394,077.60

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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.