Home / 654,509.98-981,777.12-205,220.80

Finding the Fourth Proportional to 654,509.98, 981,777.12 and 205,220.80

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Solution

The fourth proportional to 654,509.98, 981,777.12 and 205,220.80 is: 307,835.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,509.98 : 981,777.12 = 205,220.80 : x
  2. Step 2: Convert to fraction form
    654,509.98/981,777.12 = 205,220.80/x
  3. Step 3: Cross multiply
    654,509.98x = 981,777.12 × 205,220.80
  4. Step 4: Simplify right side
    654,509.98x = 201,481,085,988.10
  5. Step 5: Solve for x
    x = 201,481,085,988.10/654,509.98
  6. Step 6: Final answer
    x = 307,835.01

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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.