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Finding the Fourth Proportional to 624,467.66, 861,786.26 and 382,703.52

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Solution

The fourth proportional to 624,467.66, 861,786.26 and 382,703.52 is: 528,143.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,467.66 : 861,786.26 = 382,703.52 : x
  2. Step 2: Convert to fraction form
    624,467.66/861,786.26 = 382,703.52/x
  3. Step 3: Cross multiply
    624,467.66x = 861,786.26 × 382,703.52
  4. Step 4: Simplify right side
    624,467.66x = 329,808,635,189.64
  5. Step 5: Solve for x
    x = 329,808,635,189.64/624,467.66
  6. Step 6: Final answer
    x = 528,143.66

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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.