Home / 686,342.54-1,029,499.22-187,706.54

Finding the Fourth Proportional to 686,342.54, 1,029,499.22 and 187,706.54

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Solution

The fourth proportional to 686,342.54, 1,029,499.22 and 187,706.54 is: 281,555.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,342.54 : 1,029,499.22 = 187,706.54 : x
  2. Step 2: Convert to fraction form
    686,342.54/1,029,499.22 = 187,706.54/x
  3. Step 3: Cross multiply
    686,342.54x = 1,029,499.22 × 187,706.54
  4. Step 4: Simplify right side
    686,342.54x = 193,243,736,518.90
  5. Step 5: Solve for x
    x = 193,243,736,518.90/686,342.54
  6. Step 6: Final answer
    x = 281,555.82

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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.