Home / 987,736.82-1,480,588.27-388,455.08

Finding the Fourth Proportional to 987,736.82, 1,480,588.27 and 388,455.08

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Solution

The fourth proportional to 987,736.82, 1,480,588.27 and 388,455.08 is: 582,282.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,736.82 : 1,480,588.27 = 388,455.08 : x
  2. Step 2: Convert to fraction form
    987,736.82/1,480,588.27 = 388,455.08/x
  3. Step 3: Cross multiply
    987,736.82x = 1,480,588.27 × 388,455.08
  4. Step 4: Simplify right side
    987,736.82x = 575,142,026,495.83
  5. Step 5: Solve for x
    x = 575,142,026,495.83/987,736.82
  6. Step 6: Final answer
    x = 582,282.67

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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.