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Finding the Fourth Proportional to 561,568, 774,952.34 and 306,921.04

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Solution

The fourth proportional to 561,568, 774,952.34 and 306,921.04 is: 423,544.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,568 : 774,952.34 = 306,921.04 : x
  2. Step 2: Convert to fraction form
    561,568/774,952.34 = 306,921.04/x
  3. Step 3: Cross multiply
    561,568x = 774,952.34 × 306,921.04
  4. Step 4: Simplify right side
    561,568x = 237,849,178,143.23
  5. Step 5: Solve for x
    x = 237,849,178,143.23/561,568
  6. Step 6: Final answer
    x = 423,544.75

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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.