Home / 382,579.80-528,061.50-269,453.40

Finding the Fourth Proportional to 382,579.80, 528,061.50 and 269,453.40

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Solution

The fourth proportional to 382,579.80, 528,061.50 and 269,453.40 is: 371,917.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,579.80 : 528,061.50 = 269,453.40 : x
  2. Step 2: Convert to fraction form
    382,579.80/528,061.50 = 269,453.40/x
  3. Step 3: Cross multiply
    382,579.80x = 528,061.50 × 269,453.40
  4. Step 4: Simplify right side
    382,579.80x = 142,287,966,584.10
  5. Step 5: Solve for x
    x = 142,287,966,584.10/382,579.80
  6. Step 6: Final answer
    x = 371,917.09

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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.