Home / 1,222,226.56-1,686,640.22-678,348.31

Finding the Fourth Proportional to 1,222,226.56, 1,686,640.22 and 678,348.31

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Solution

The fourth proportional to 1,222,226.56, 1,686,640.22 and 678,348.31 is: 936,102.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,226.56 : 1,686,640.22 = 678,348.31 : x
  2. Step 2: Convert to fraction form
    1,222,226.56/1,686,640.22 = 678,348.31/x
  3. Step 3: Cross multiply
    1,222,226.56x = 1,686,640.22 × 678,348.31
  4. Step 4: Simplify right side
    1,222,226.56x = 1,144,129,534,381.83
  5. Step 5: Solve for x
    x = 1,144,129,534,381.83/1,222,226.56
  6. Step 6: Final answer
    x = 936,102.66

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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.