Home / 686,037.80-1,029,056.70-187,401.80

Finding the Fourth Proportional to 686,037.80, 1,029,056.70 and 187,401.80

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Solution

The fourth proportional to 686,037.80, 1,029,056.70 and 187,401.80 is: 281,102.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,037.80 : 1,029,056.70 = 187,401.80 : x
  2. Step 2: Convert to fraction form
    686,037.80/1,029,056.70 = 187,401.80/x
  3. Step 3: Cross multiply
    686,037.80x = 1,029,056.70 × 187,401.80
  4. Step 4: Simplify right side
    686,037.80x = 192,847,077,882.06
  5. Step 5: Solve for x
    x = 192,847,077,882.06/686,037.80
  6. Step 6: Final answer
    x = 281,102.70

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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.