Home / 992,997.20-1,489,495.80-328,149.20

Finding the Fourth Proportional to 992,997.20, 1,489,495.80 and 328,149.20

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Solution

The fourth proportional to 992,997.20, 1,489,495.80 and 328,149.20 is: 492,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,997.20 : 1,489,495.80 = 328,149.20 : x
  2. Step 2: Convert to fraction form
    992,997.20/1,489,495.80 = 328,149.20/x
  3. Step 3: Cross multiply
    992,997.20x = 1,489,495.80 × 328,149.20
  4. Step 4: Simplify right side
    992,997.20x = 488,776,855,173.36
  5. Step 5: Solve for x
    x = 488,776,855,173.36/992,997.20
  6. Step 6: Final answer
    x = 492,223.80

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Similar ratio
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1.5x scale

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.