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Finding the Fourth Proportional to 479,485.92, 719,041.92 and 179,803.20

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Solution

The fourth proportional to 479,485.92, 719,041.92 and 179,803.20 is: 269,634.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,485.92 : 719,041.92 = 179,803.20 : x
  2. Step 2: Convert to fraction form
    479,485.92/719,041.92 = 179,803.20/x
  3. Step 3: Cross multiply
    479,485.92x = 719,041.92 × 179,803.20
  4. Step 4: Simplify right side
    479,485.92x = 129,286,038,150.14
  5. Step 5: Solve for x
    x = 129,286,038,150.14/479,485.92
  6. Step 6: Final answer
    x = 269,634.69

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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.