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Finding the Fourth Proportional to 630,958.61, 946,446.12 and 181,686.85

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Solution

The fourth proportional to 630,958.61, 946,446.12 and 181,686.85 is: 272,532.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,958.61 : 946,446.12 = 181,686.85 : x
  2. Step 2: Convert to fraction form
    630,958.61/946,446.12 = 181,686.85/x
  3. Step 3: Cross multiply
    630,958.61x = 946,446.12 × 181,686.85
  4. Step 4: Simplify right side
    630,958.61x = 171,956,811,871.41
  5. Step 5: Solve for x
    x = 171,956,811,871.41/630,958.61
  6. Step 6: Final answer
    x = 272,532.63

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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.