Home / 987,099.40-1,480,794.90-313,244.20

Finding the Fourth Proportional to 987,099.40, 1,480,794.90 and 313,244.20

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Solution

The fourth proportional to 987,099.40, 1,480,794.90 and 313,244.20 is: 469,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,099.40 : 1,480,794.90 = 313,244.20 : x
  2. Step 2: Convert to fraction form
    987,099.40/1,480,794.90 = 313,244.20/x
  3. Step 3: Cross multiply
    987,099.40x = 1,480,794.90 × 313,244.20
  4. Step 4: Simplify right side
    987,099.40x = 463,850,413,814.58
  5. Step 5: Solve for x
    x = 463,850,413,814.58/987,099.40
  6. Step 6: Final answer
    x = 469,912.57

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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.