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Finding the Fourth Proportional to 608,746, 840,072.36 and 340,474

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Solution

The fourth proportional to 608,746, 840,072.36 and 340,474 is: 469,855.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,746 : 840,072.36 = 340,474 : x
  2. Step 2: Convert to fraction form
    608,746/840,072.36 = 340,474/x
  3. Step 3: Cross multiply
    608,746x = 840,072.36 × 340,474
  4. Step 4: Simplify right side
    608,746x = 286,022,796,698.64
  5. Step 5: Solve for x
    x = 286,022,796,698.64/608,746
  6. Step 6: Final answer
    x = 469,855.73

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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.