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Finding the Fourth Proportional to 887,327.40, 1,330,991.10 and 296,351.40

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Solution

The fourth proportional to 887,327.40, 1,330,991.10 and 296,351.40 is: 444,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,327.40 : 1,330,991.10 = 296,351.40 : x
  2. Step 2: Convert to fraction form
    887,327.40/1,330,991.10 = 296,351.40/x
  3. Step 3: Cross multiply
    887,327.40x = 1,330,991.10 × 296,351.40
  4. Step 4: Simplify right side
    887,327.40x = 394,441,075,872.54
  5. Step 5: Solve for x
    x = 394,441,075,872.54/887,327.40
  6. Step 6: Final answer
    x = 444,527.10

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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.