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Finding the Fourth Proportional to 483,875.97, 667,786.19 and 290,290.93

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Solution

The fourth proportional to 483,875.97, 667,786.19 and 290,290.93 is: 400,623.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,875.97 : 667,786.19 = 290,290.93 : x
  2. Step 2: Convert to fraction form
    483,875.97/667,786.19 = 290,290.93/x
  3. Step 3: Cross multiply
    483,875.97x = 667,786.19 × 290,290.93
  4. Step 4: Simplify right side
    483,875.97x = 193,852,274,136.26
  5. Step 5: Solve for x
    x = 193,852,274,136.26/483,875.97
  6. Step 6: Final answer
    x = 400,623.89

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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.