Home / 722,416.33-1,083,632.69-189,991.18

Finding the Fourth Proportional to 722,416.33, 1,083,632.69 and 189,991.18

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Solution

The fourth proportional to 722,416.33, 1,083,632.69 and 189,991.18 is: 284,988.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,416.33 : 1,083,632.69 = 189,991.18 : x
  2. Step 2: Convert to fraction form
    722,416.33/1,083,632.69 = 189,991.18/x
  3. Step 3: Cross multiply
    722,416.33x = 1,083,632.69 × 189,991.18
  4. Step 4: Simplify right side
    722,416.33x = 205,880,653,459.67
  5. Step 5: Solve for x
    x = 205,880,653,459.67/722,416.33
  6. Step 6: Final answer
    x = 284,988.93

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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.