Home / 987,496.20-1,481,244.30-668,631.60

Finding the Fourth Proportional to 987,496.20, 1,481,244.30 and 668,631.60

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Solution

The fourth proportional to 987,496.20, 1,481,244.30 and 668,631.60 is: 1,002,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,496.20 : 1,481,244.30 = 668,631.60 : x
  2. Step 2: Convert to fraction form
    987,496.20/1,481,244.30 = 668,631.60/x
  3. Step 3: Cross multiply
    987,496.20x = 1,481,244.30 × 668,631.60
  4. Step 4: Simplify right side
    987,496.20x = 990,406,746,299.88
  5. Step 5: Solve for x
    x = 990,406,746,299.88/987,496.20
  6. Step 6: Final answer
    x = 1,002,947.40

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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.