Home / 1,634,142.60-2,255,180.94-989,197.92

Finding the Fourth Proportional to 1,634,142.60, 2,255,180.94 and 989,197.92

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Solution

The fourth proportional to 1,634,142.60, 2,255,180.94 and 989,197.92 is: 1,365,131.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634,142.60 : 2,255,180.94 = 989,197.92 : x
  2. Step 2: Convert to fraction form
    1,634,142.60/2,255,180.94 = 989,197.92/x
  3. Step 3: Cross multiply
    1,634,142.60x = 2,255,180.94 × 989,197.92
  4. Step 4: Simplify right side
    1,634,142.60x = 2,230,820,295,071.65
  5. Step 5: Solve for x
    x = 2,230,820,295,071.65/1,634,142.60
  6. Step 6: Final answer
    x = 1,365,131.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.