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Finding the Fourth Proportional to 630,908.64, 946,499.04 and 181,626.48

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Solution

The fourth proportional to 630,908.64, 946,499.04 and 181,626.48 is: 272,478.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,908.64 : 946,499.04 = 181,626.48 : x
  2. Step 2: Convert to fraction form
    630,908.64/946,499.04 = 181,626.48/x
  3. Step 3: Cross multiply
    630,908.64x = 946,499.04 × 181,626.48
  4. Step 4: Simplify right side
    630,908.64x = 171,909,288,958.58
  5. Step 5: Solve for x
    x = 171,909,288,958.58/630,908.64
  6. Step 6: Final answer
    x = 272,478.89

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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.