Home / 1,268,402.91-1,900,608.81-980,918.31

Finding the Fourth Proportional to 1,268,402.91, 1,900,608.81 and 980,918.31

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Solution

The fourth proportional to 1,268,402.91, 1,900,608.81 and 980,918.31 is: 1,469,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,402.91 : 1,900,608.81 = 980,918.31 : x
  2. Step 2: Convert to fraction form
    1,268,402.91/1,900,608.81 = 980,918.31/x
  3. Step 3: Cross multiply
    1,268,402.91x = 1,900,608.81 × 980,918.31
  4. Step 4: Simplify right side
    1,268,402.91x = 1,864,341,972,373.27
  5. Step 5: Solve for x
    x = 1,864,341,972,373.27/1,268,402.91
  6. Step 6: Final answer
    x = 1,469,834.20

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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.