Home / 1,123,387.80-1,682,457.30-1,100,837.40

Finding the Fourth Proportional to 1,123,387.80, 1,682,457.30 and 1,100,837.40

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Solution

The fourth proportional to 1,123,387.80, 1,682,457.30 and 1,100,837.40 is: 1,648,684.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,387.80 : 1,682,457.30 = 1,100,837.40 : x
  2. Step 2: Convert to fraction form
    1,123,387.80/1,682,457.30 = 1,100,837.40/x
  3. Step 3: Cross multiply
    1,123,387.80x = 1,682,457.30 × 1,100,837.40
  4. Step 4: Simplify right side
    1,123,387.80x = 1,852,111,919,743.02
  5. Step 5: Solve for x
    x = 1,852,111,919,743.02/1,123,387.80
  6. Step 6: Final answer
    x = 1,648,684.38

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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.