Home / 890,040.31-1,335,097.32-258,954.13

Finding the Fourth Proportional to 890,040.31, 1,335,097.32 and 258,954.13

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Solution

The fourth proportional to 890,040.31, 1,335,097.32 and 258,954.13 is: 388,441.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,040.31 : 1,335,097.32 = 258,954.13 : x
  2. Step 2: Convert to fraction form
    890,040.31/1,335,097.32 = 258,954.13/x
  3. Step 3: Cross multiply
    890,040.31x = 1,335,097.32 × 258,954.13
  4. Step 4: Simplify right side
    890,040.31x = 345,728,961,123.75
  5. Step 5: Solve for x
    x = 345,728,961,123.75/890,040.31
  6. Step 6: Final answer
    x = 388,441.91

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1.5x scale

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.