Home / 658,919.36-987,249.60-442,372.48

Finding the Fourth Proportional to 658,919.36, 987,249.60 and 442,372.48

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Solution

The fourth proportional to 658,919.36, 987,249.60 and 442,372.48 is: 662,800.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,919.36 : 987,249.60 = 442,372.48 : x
  2. Step 2: Convert to fraction form
    658,919.36/987,249.60 = 442,372.48/x
  3. Step 3: Cross multiply
    658,919.36x = 987,249.60 × 442,372.48
  4. Step 4: Simplify right side
    658,919.36x = 436,732,053,931.01
  5. Step 5: Solve for x
    x = 436,732,053,931.01/658,919.36
  6. Step 6: Final answer
    x = 662,800.46

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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.