Home / 890,716.80-1,336,075.20-225,868.80

Finding the Fourth Proportional to 890,716.80, 1,336,075.20 and 225,868.80

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Solution

The fourth proportional to 890,716.80, 1,336,075.20 and 225,868.80 is: 338,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,716.80 : 1,336,075.20 = 225,868.80 : x
  2. Step 2: Convert to fraction form
    890,716.80/1,336,075.20 = 225,868.80/x
  3. Step 3: Cross multiply
    890,716.80x = 1,336,075.20 × 225,868.80
  4. Step 4: Simplify right side
    890,716.80x = 301,777,702,133.76
  5. Step 5: Solve for x
    x = 301,777,702,133.76/890,716.80
  6. Step 6: Final answer
    x = 338,803.20

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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.