Home / 890,074.28-1,335,330.12-258,993.56

Finding the Fourth Proportional to 890,074.28, 1,335,330.12 and 258,993.56

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Solution

The fourth proportional to 890,074.28, 1,335,330.12 and 258,993.56 is: 388,553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,074.28 : 1,335,330.12 = 258,993.56 : x
  2. Step 2: Convert to fraction form
    890,074.28/1,335,330.12 = 258,993.56/x
  3. Step 3: Cross multiply
    890,074.28x = 1,335,330.12 × 258,993.56
  4. Step 4: Simplify right side
    890,074.28x = 345,841,901,554.03
  5. Step 5: Solve for x
    x = 345,841,901,554.03/890,074.28
  6. Step 6: Final answer
    x = 388,553.98

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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.