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Finding the Fourth Proportional to 607,072.68, 838,505.79 and 454,792.14

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Solution

The fourth proportional to 607,072.68, 838,505.79 and 454,792.14 is: 628,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,072.68 : 838,505.79 = 454,792.14 : x
  2. Step 2: Convert to fraction form
    607,072.68/838,505.79 = 454,792.14/x
  3. Step 3: Cross multiply
    607,072.68x = 838,505.79 × 454,792.14
  4. Step 4: Simplify right side
    607,072.68x = 381,345,842,636.49
  5. Step 5: Solve for x
    x = 381,345,842,636.49/607,072.68
  6. Step 6: Final answer
    x = 628,171.64

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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.