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Finding the Fourth Proportional to 618,531.53, 853,596.61 and 346,589.35

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Solution

The fourth proportional to 618,531.53, 853,596.61 and 346,589.35 is: 478,306.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,531.53 : 853,596.61 = 346,589.35 : x
  2. Step 2: Convert to fraction form
    618,531.53/853,596.61 = 346,589.35/x
  3. Step 3: Cross multiply
    618,531.53x = 853,596.61 × 346,589.35
  4. Step 4: Simplify right side
    618,531.53x = 295,847,495,844.88
  5. Step 5: Solve for x
    x = 295,847,495,844.88/618,531.53
  6. Step 6: Final answer
    x = 478,306.25

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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.