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Finding the Fourth Proportional to 553,372.80, 763,623.36 and 327,039.36

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Solution

The fourth proportional to 553,372.80, 763,623.36 and 327,039.36 is: 451,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,372.80 : 763,623.36 = 327,039.36 : x
  2. Step 2: Convert to fraction form
    553,372.80/763,623.36 = 327,039.36/x
  3. Step 3: Cross multiply
    553,372.80x = 763,623.36 × 327,039.36
  4. Step 4: Simplify right side
    553,372.80x = 249,734,894,935.45
  5. Step 5: Solve for x
    x = 249,734,894,935.45/553,372.80
  6. Step 6: Final answer
    x = 451,295.93

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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.