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Finding the Fourth Proportional to 874,334.39, 1,311,678.39 and 368,896.62

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Solution

The fourth proportional to 874,334.39, 1,311,678.39 and 368,896.62 is: 553,419.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,334.39 : 1,311,678.39 = 368,896.62 : x
  2. Step 2: Convert to fraction form
    874,334.39/1,311,678.39 = 368,896.62/x
  3. Step 3: Cross multiply
    874,334.39x = 1,311,678.39 × 368,896.62
  4. Step 4: Simplify right side
    874,334.39x = 483,873,724,598.04
  5. Step 5: Solve for x
    x = 483,873,724,598.04/874,334.39
  6. Step 6: Final answer
    x = 553,419.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.