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Finding the Fourth Proportional to 618,782.49, 852,322.60 and 437,179.17

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Solution

The fourth proportional to 618,782.49, 852,322.60 and 437,179.17 is: 602,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,782.49 : 852,322.60 = 437,179.17 : x
  2. Step 2: Convert to fraction form
    618,782.49/852,322.60 = 437,179.17/x
  3. Step 3: Cross multiply
    618,782.49x = 852,322.60 × 437,179.17
  4. Step 4: Simplify right side
    618,782.49x = 372,617,690,582.93
  5. Step 5: Solve for x
    x = 372,617,690,582.93/618,782.49
  6. Step 6: Final answer
    x = 602,178.79

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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.