Home / 382,555.30-528,027.69-269,428.90

Finding the Fourth Proportional to 382,555.30, 528,027.69 and 269,428.90

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Solution

The fourth proportional to 382,555.30, 528,027.69 and 269,428.90 is: 371,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,555.30 : 528,027.69 = 269,428.90 : x
  2. Step 2: Convert to fraction form
    382,555.30/528,027.69 = 269,428.90/x
  3. Step 3: Cross multiply
    382,555.30x = 528,027.69 × 269,428.90
  4. Step 4: Simplify right side
    382,555.30x = 142,265,919,686.24
  5. Step 5: Solve for x
    x = 142,265,919,686.24/382,555.30
  6. Step 6: Final answer
    x = 371,883.28

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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.