Home / 987,404.20-1,481,106.30-239,450.20

Finding the Fourth Proportional to 987,404.20, 1,481,106.30 and 239,450.20

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Solution

The fourth proportional to 987,404.20, 1,481,106.30 and 239,450.20 is: 359,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,404.20 : 1,481,106.30 = 239,450.20 : x
  2. Step 2: Convert to fraction form
    987,404.20/1,481,106.30 = 239,450.20/x
  3. Step 3: Cross multiply
    987,404.20x = 1,481,106.30 × 239,450.20
  4. Step 4: Simplify right side
    987,404.20x = 354,651,199,756.26
  5. Step 5: Solve for x
    x = 354,651,199,756.26/987,404.20
  6. Step 6: Final answer
    x = 359,175.30

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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.