Home / 482,186.43-664,955.66-288,561.20

Finding the Fourth Proportional to 482,186.43, 664,955.66 and 288,561.20

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Solution

The fourth proportional to 482,186.43, 664,955.66 and 288,561.20 is: 397,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,186.43 : 664,955.66 = 288,561.20 : x
  2. Step 2: Convert to fraction form
    482,186.43/664,955.66 = 288,561.20/x
  3. Step 3: Cross multiply
    482,186.43x = 664,955.66 × 288,561.20
  4. Step 4: Simplify right side
    482,186.43x = 191,880,400,593.02
  5. Step 5: Solve for x
    x = 191,880,400,593.02/482,186.43
  6. Step 6: Final answer
    x = 397,938.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.