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Finding the Fourth Proportional to 618,223.24, 853,138.14 and 346,290.52

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Solution

The fourth proportional to 618,223.24, 853,138.14 and 346,290.52 is: 477,875.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,223.24 : 853,138.14 = 346,290.52 : x
  2. Step 2: Convert to fraction form
    618,223.24/853,138.14 = 346,290.52/x
  3. Step 3: Cross multiply
    618,223.24x = 853,138.14 × 346,290.52
  4. Step 4: Simplify right side
    618,223.24x = 295,433,650,132.43
  5. Step 5: Solve for x
    x = 295,433,650,132.43/618,223.24
  6. Step 6: Final answer
    x = 477,875.35

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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.