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Finding the Fourth Proportional to 462,966.62, 639,112.38 and 348,289.04

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Solution

The fourth proportional to 462,966.62, 639,112.38 and 348,289.04 is: 480,803.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,966.62 : 639,112.38 = 348,289.04 : x
  2. Step 2: Convert to fraction form
    462,966.62/639,112.38 = 348,289.04/x
  3. Step 3: Cross multiply
    462,966.62x = 639,112.38 × 348,289.04
  4. Step 4: Simplify right side
    462,966.62x = 222,595,838,880.10
  5. Step 5: Solve for x
    x = 222,595,838,880.10/462,966.62
  6. Step 6: Final answer
    x = 480,803.21

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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.