Home / 665,110.40-996,571.20-384,137.60

Finding the Fourth Proportional to 665,110.40, 996,571.20 and 384,137.60

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Solution

The fourth proportional to 665,110.40, 996,571.20 and 384,137.60 is: 575,574.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,110.40 : 996,571.20 = 384,137.60 : x
  2. Step 2: Convert to fraction form
    665,110.40/996,571.20 = 384,137.60/x
  3. Step 3: Cross multiply
    665,110.40x = 996,571.20 × 384,137.60
  4. Step 4: Simplify right side
    665,110.40x = 382,820,468,997.12
  5. Step 5: Solve for x
    x = 382,820,468,997.12/665,110.40
  6. Step 6: Final answer
    x = 575,574.32

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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.