Home / 1,139,744.14-1,564,610.66-978,318.94

Finding the Fourth Proportional to 1,139,744.14, 1,564,610.66 and 978,318.94

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Solution

The fourth proportional to 1,139,744.14, 1,564,610.66 and 978,318.94 is: 1,343,010.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,744.14 : 1,564,610.66 = 978,318.94 : x
  2. Step 2: Convert to fraction form
    1,139,744.14/1,564,610.66 = 978,318.94/x
  3. Step 3: Cross multiply
    1,139,744.14x = 1,564,610.66 × 978,318.94
  4. Step 4: Simplify right side
    1,139,744.14x = 1,530,688,242,403.90
  5. Step 5: Solve for x
    x = 1,530,688,242,403.90/1,139,744.14
  6. Step 6: Final answer
    x = 1,343,010.41

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.