Home / 1,177,326.40-1,765,989.60-1,090,721.20

Finding the Fourth Proportional to 1,177,326.40, 1,765,989.60 and 1,090,721.20

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Solution

The fourth proportional to 1,177,326.40, 1,765,989.60 and 1,090,721.20 is: 1,636,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,326.40 : 1,765,989.60 = 1,090,721.20 : x
  2. Step 2: Convert to fraction form
    1,177,326.40/1,765,989.60 = 1,090,721.20/x
  3. Step 3: Cross multiply
    1,177,326.40x = 1,765,989.60 × 1,090,721.20
  4. Step 4: Simplify right side
    1,177,326.40x = 1,926,202,295,699.52
  5. Step 5: Solve for x
    x = 1,926,202,295,699.52/1,177,326.40
  6. Step 6: Final answer
    x = 1,636,081.80

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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.