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Finding the Fourth Proportional to 480,559.42, 663,163.77 and 342,991.66

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Solution

The fourth proportional to 480,559.42, 663,163.77 and 342,991.66 is: 473,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,559.42 : 663,163.77 = 342,991.66 : x
  2. Step 2: Convert to fraction form
    480,559.42/663,163.77 = 342,991.66/x
  3. Step 3: Cross multiply
    480,559.42x = 663,163.77 × 342,991.66
  4. Step 4: Simplify right side
    480,559.42x = 227,459,639,008.34
  5. Step 5: Solve for x
    x = 227,459,639,008.34/480,559.42
  6. Step 6: Final answer
    x = 473,322.61

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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.