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Finding the Fourth Proportional to 618,750.99, 853,868.43 and 346,818.42

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Solution

The fourth proportional to 618,750.99, 853,868.43 and 346,818.42 is: 478,604.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,750.99 : 853,868.43 = 346,818.42 : x
  2. Step 2: Convert to fraction form
    618,750.99/853,868.43 = 346,818.42/x
  3. Step 3: Cross multiply
    618,750.99x = 853,868.43 × 346,818.42
  4. Step 4: Simplify right side
    618,750.99x = 296,137,299,780.48
  5. Step 5: Solve for x
    x = 296,137,299,780.48/618,750.99
  6. Step 6: Final answer
    x = 478,604.97

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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.