Home / 987,942.33-1,481,581.40-388,746.45

Finding the Fourth Proportional to 987,942.33, 1,481,581.40 and 388,746.45

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Solution

The fourth proportional to 987,942.33, 1,481,581.40 and 388,746.45 is: 582,989.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,942.33 : 1,481,581.40 = 388,746.45 : x
  2. Step 2: Convert to fraction form
    987,942.33/1,481,581.40 = 388,746.45/x
  3. Step 3: Cross multiply
    987,942.33x = 1,481,581.40 × 388,746.45
  4. Step 4: Simplify right side
    987,942.33x = 575,959,507,692.30
  5. Step 5: Solve for x
    x = 575,959,507,692.30/987,942.33
  6. Step 6: Final answer
    x = 582,989.00

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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.