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Finding the Fourth Proportional to 479,756.93, 719,982.63 and 187,679.82

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Solution

The fourth proportional to 479,756.93, 719,982.63 and 187,679.82 is: 281,655.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,756.93 : 719,982.63 = 187,679.82 : x
  2. Step 2: Convert to fraction form
    479,756.93/719,982.63 = 187,679.82/x
  3. Step 3: Cross multiply
    479,756.93x = 719,982.63 × 187,679.82
  4. Step 4: Simplify right side
    479,756.93x = 135,126,213,458.96
  5. Step 5: Solve for x
    x = 135,126,213,458.96/479,756.93
  6. Step 6: Final answer
    x = 281,655.57

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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.