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Finding the Fourth Proportional to 508,136.97, 699,469.05 and 439,195.04

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Solution

The fourth proportional to 508,136.97, 699,469.05 and 439,195.04 is: 604,567.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,136.97 : 699,469.05 = 439,195.04 : x
  2. Step 2: Convert to fraction form
    508,136.97/699,469.05 = 439,195.04/x
  3. Step 3: Cross multiply
    508,136.97x = 699,469.05 × 439,195.04
  4. Step 4: Simplify right side
    508,136.97x = 307,203,337,393.51
  5. Step 5: Solve for x
    x = 307,203,337,393.51/508,136.97
  6. Step 6: Final answer
    x = 604,567.97

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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.