Home / 1,181,215.20-1,771,477.20-422,968.80

Finding the Fourth Proportional to 1,181,215.20, 1,771,477.20 and 422,968.80

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Solution

The fourth proportional to 1,181,215.20, 1,771,477.20 and 422,968.80 is: 634,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,215.20 : 1,771,477.20 = 422,968.80 : x
  2. Step 2: Convert to fraction form
    1,181,215.20/1,771,477.20 = 422,968.80/x
  3. Step 3: Cross multiply
    1,181,215.20x = 1,771,477.20 × 422,968.80
  4. Step 4: Simplify right side
    1,181,215.20x = 749,279,585,511.36
  5. Step 5: Solve for x
    x = 749,279,585,511.36/1,181,215.20
  6. Step 6: Final answer
    x = 634,329.45

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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.