Home / 911,251.80-1,366,877.70-657,997.20

Finding the Fourth Proportional to 911,251.80, 1,366,877.70 and 657,997.20

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Solution

The fourth proportional to 911,251.80, 1,366,877.70 and 657,997.20 is: 986,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,251.80 : 1,366,877.70 = 657,997.20 : x
  2. Step 2: Convert to fraction form
    911,251.80/1,366,877.70 = 657,997.20/x
  3. Step 3: Cross multiply
    911,251.80x = 1,366,877.70 × 657,997.20
  4. Step 4: Simplify right side
    911,251.80x = 899,401,699,342.44
  5. Step 5: Solve for x
    x = 899,401,699,342.44/911,251.80
  6. Step 6: Final answer
    x = 986,995.80

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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.