Home / 889,599.40-1,334,399.10-328,517.80

Finding the Fourth Proportional to 889,599.40, 1,334,399.10 and 328,517.80

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Solution

The fourth proportional to 889,599.40, 1,334,399.10 and 328,517.80 is: 492,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,599.40 : 1,334,399.10 = 328,517.80 : x
  2. Step 2: Convert to fraction form
    889,599.40/1,334,399.10 = 328,517.80/x
  3. Step 3: Cross multiply
    889,599.40x = 1,334,399.10 × 328,517.80
  4. Step 4: Simplify right side
    889,599.40x = 438,373,856,653.98
  5. Step 5: Solve for x
    x = 438,373,856,653.98/889,599.40
  6. Step 6: Final answer
    x = 492,776.70

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Double scale
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Similar ratio
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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.