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Finding the Fourth Proportional to 486,089.75, 729,169.66 and 186,570.33

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Solution

The fourth proportional to 486,089.75, 729,169.66 and 186,570.33 is: 279,868.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,089.75 : 729,169.66 = 186,570.33 : x
  2. Step 2: Convert to fraction form
    486,089.75/729,169.66 = 186,570.33/x
  3. Step 3: Cross multiply
    486,089.75x = 729,169.66 × 186,570.33
  4. Step 4: Simplify right side
    486,089.75x = 136,041,424,092.19
  5. Step 5: Solve for x
    x = 136,041,424,092.19/486,089.75
  6. Step 6: Final answer
    x = 279,868.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.