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Finding the Fourth Proportional to 618,155.52, 852,753.60 and 403,198.08

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Solution

The fourth proportional to 618,155.52, 852,753.60 and 403,198.08 is: 556,217.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,155.52 : 852,753.60 = 403,198.08 : x
  2. Step 2: Convert to fraction form
    618,155.52/852,753.60 = 403,198.08/x
  3. Step 3: Cross multiply
    618,155.52x = 852,753.60 × 403,198.08
  4. Step 4: Simplify right side
    618,155.52x = 343,828,614,233.09
  5. Step 5: Solve for x
    x = 343,828,614,233.09/618,155.52
  6. Step 6: Final answer
    x = 556,217.01

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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.