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Finding the Fourth Proportional to 486,242.52, 670,716.36 and 322,906.02

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Solution

The fourth proportional to 486,242.52, 670,716.36 and 322,906.02 is: 445,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,242.52 : 670,716.36 = 322,906.02 : x
  2. Step 2: Convert to fraction form
    486,242.52/670,716.36 = 322,906.02/x
  3. Step 3: Cross multiply
    486,242.52x = 670,716.36 × 322,906.02
  4. Step 4: Simplify right side
    486,242.52x = 216,578,350,356.49
  5. Step 5: Solve for x
    x = 216,578,350,356.49/486,242.52
  6. Step 6: Final answer
    x = 445,412.20

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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.