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Finding the Fourth Proportional to 618,299.63, 853,238.10 and 346,365.72

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Solution

The fourth proportional to 618,299.63, 853,238.10 and 346,365.72 is: 477,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,299.63 : 853,238.10 = 346,365.72 : x
  2. Step 2: Convert to fraction form
    618,299.63/853,238.10 = 346,365.72/x
  3. Step 3: Cross multiply
    618,299.63x = 853,238.10 × 346,365.72
  4. Step 4: Simplify right side
    618,299.63x = 295,532,430,136.80
  5. Step 5: Solve for x
    x = 295,532,430,136.80/618,299.63
  6. Step 6: Final answer
    x = 477,976.08

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1.5x scale

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.