Home / 658,619.21-908,895.44-356,813.21

Finding the Fourth Proportional to 658,619.21, 908,895.44 and 356,813.21

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Solution

The fourth proportional to 658,619.21, 908,895.44 and 356,813.21 is: 492,402.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,619.21 : 908,895.44 = 356,813.21 : x
  2. Step 2: Convert to fraction form
    658,619.21/908,895.44 = 356,813.21/x
  3. Step 3: Cross multiply
    658,619.21x = 908,895.44 × 356,813.21
  4. Step 4: Simplify right side
    658,619.21x = 324,305,897,716.70
  5. Step 5: Solve for x
    x = 324,305,897,716.70/658,619.21
  6. Step 6: Final answer
    x = 492,402.73

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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.