Home / 465,299.09-697,997.23-128,339.90

Finding the Fourth Proportional to 465,299.09, 697,997.23 and 128,339.90

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Solution

The fourth proportional to 465,299.09, 697,997.23 and 128,339.90 is: 192,523.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,299.09 : 697,997.23 = 128,339.90 : x
  2. Step 2: Convert to fraction form
    465,299.09/697,997.23 = 128,339.90/x
  3. Step 3: Cross multiply
    465,299.09x = 697,997.23 × 128,339.90
  4. Step 4: Simplify right side
    465,299.09x = 89,580,894,698.48
  5. Step 5: Solve for x
    x = 89,580,894,698.48/465,299.09
  6. Step 6: Final answer
    x = 192,523.25

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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.