Home / 913,297.56-1,260,331.76-505,399.14

Finding the Fourth Proportional to 913,297.56, 1,260,331.76 and 505,399.14

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Solution

The fourth proportional to 913,297.56, 1,260,331.76 and 505,399.14 is: 697,440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,297.56 : 1,260,331.76 = 505,399.14 : x
  2. Step 2: Convert to fraction form
    913,297.56/1,260,331.76 = 505,399.14/x
  3. Step 3: Cross multiply
    913,297.56x = 1,260,331.76 × 505,399.14
  4. Step 4: Simplify right side
    913,297.56x = 636,970,587,618.69
  5. Step 5: Solve for x
    x = 636,970,587,618.69/913,297.56
  6. Step 6: Final answer
    x = 697,440.37

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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.