Home / 465,298.09-697,995.73-128,338.90

Finding the Fourth Proportional to 465,298.09, 697,995.73 and 128,338.90

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Solution

The fourth proportional to 465,298.09, 697,995.73 and 128,338.90 is: 192,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,298.09 : 697,995.73 = 128,338.90 : x
  2. Step 2: Convert to fraction form
    465,298.09/697,995.73 = 128,338.90/x
  3. Step 3: Cross multiply
    465,298.09x = 697,995.73 × 128,338.90
  4. Step 4: Simplify right side
    465,298.09x = 89,580,002,608.33
  5. Step 5: Solve for x
    x = 89,580,002,608.33/465,298.09
  6. Step 6: Final answer
    x = 192,521.75

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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.