Home / 1,216,261.14-1,678,161.88-726,135.26

Finding the Fourth Proportional to 1,216,261.14, 1,678,161.88 and 726,135.26

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Solution

The fourth proportional to 1,216,261.14, 1,678,161.88 and 726,135.26 is: 1,001,900.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,261.14 : 1,678,161.88 = 726,135.26 : x
  2. Step 2: Convert to fraction form
    1,216,261.14/1,678,161.88 = 726,135.26/x
  3. Step 3: Cross multiply
    1,216,261.14x = 1,678,161.88 × 726,135.26
  4. Step 4: Simplify right side
    1,216,261.14x = 1,218,572,513,055.89
  5. Step 5: Solve for x
    x = 1,218,572,513,055.89/1,216,261.14
  6. Step 6: Final answer
    x = 1,001,900.39

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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.