Home / 1,087,991.20-1,632,332.40-488,720.80

Finding the Fourth Proportional to 1,087,991.20, 1,632,332.40 and 488,720.80

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Solution

The fourth proportional to 1,087,991.20, 1,632,332.40 and 488,720.80 is: 733,236.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,991.20 : 1,632,332.40 = 488,720.80 : x
  2. Step 2: Convert to fraction form
    1,087,991.20/1,632,332.40 = 488,720.80/x
  3. Step 3: Cross multiply
    1,087,991.20x = 1,632,332.40 × 488,720.80
  4. Step 4: Simplify right side
    1,087,991.20x = 797,754,796,393.92
  5. Step 5: Solve for x
    x = 797,754,796,393.92/1,087,991.20
  6. Step 6: Final answer
    x = 733,236.44

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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.