Home / 987,297.15-1,480,776.39-313,228.22

Finding the Fourth Proportional to 987,297.15, 1,480,776.39 and 313,228.22

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Solution

The fourth proportional to 987,297.15, 1,480,776.39 and 313,228.22 is: 469,788.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,297.15 : 1,480,776.39 = 313,228.22 : x
  2. Step 2: Convert to fraction form
    987,297.15/1,480,776.39 = 313,228.22/x
  3. Step 3: Cross multiply
    987,297.15x = 1,480,776.39 × 313,228.22
  4. Step 4: Simplify right side
    987,297.15x = 463,820,945,453.84
  5. Step 5: Solve for x
    x = 463,820,945,453.84/987,297.15
  6. Step 6: Final answer
    x = 469,788.60

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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.