Home / 1,197,661.20-1,796,741.40-399,190.80

Finding the Fourth Proportional to 1,197,661.20, 1,796,741.40 and 399,190.80

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Solution

The fourth proportional to 1,197,661.20, 1,796,741.40 and 399,190.80 is: 598,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,661.20 : 1,796,741.40 = 399,190.80 : x
  2. Step 2: Convert to fraction form
    1,197,661.20/1,796,741.40 = 399,190.80/x
  3. Step 3: Cross multiply
    1,197,661.20x = 1,796,741.40 × 399,190.80
  4. Step 4: Simplify right side
    1,197,661.20x = 717,242,636,859.12
  5. Step 5: Solve for x
    x = 717,242,636,859.12/1,197,661.20
  6. Step 6: Final answer
    x = 598,869.39

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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.