Home / 1,008,025.56-1,389,161.30-721,047.40

Finding the Fourth Proportional to 1,008,025.56, 1,389,161.30 and 721,047.40

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Solution

The fourth proportional to 1,008,025.56, 1,389,161.30 and 721,047.40 is: 993,676.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,025.56 : 1,389,161.30 = 721,047.40 : x
  2. Step 2: Convert to fraction form
    1,008,025.56/1,389,161.30 = 721,047.40/x
  3. Step 3: Cross multiply
    1,008,025.56x = 1,389,161.30 × 721,047.40
  4. Step 4: Simplify right side
    1,008,025.56x = 1,001,651,143,545.62
  5. Step 5: Solve for x
    x = 1,001,651,143,545.62/1,008,025.56
  6. Step 6: Final answer
    x = 993,676.33

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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.