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Finding the Fourth Proportional to 618,167.42, 853,013.66 and 349,895.42

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Solution

The fourth proportional to 618,167.42, 853,013.66 and 349,895.42 is: 482,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,167.42 : 853,013.66 = 349,895.42 : x
  2. Step 2: Convert to fraction form
    618,167.42/853,013.66 = 349,895.42/x
  3. Step 3: Cross multiply
    618,167.42x = 853,013.66 × 349,895.42
  4. Step 4: Simplify right side
    618,167.42x = 298,465,572,831.44
  5. Step 5: Solve for x
    x = 298,465,572,831.44/618,167.42
  6. Step 6: Final answer
    x = 482,823.20

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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.