Home / 1,222,350.04-1,686,663.26-678,489.90

Finding the Fourth Proportional to 1,222,350.04, 1,686,663.26 and 678,489.90

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Solution

The fourth proportional to 1,222,350.04, 1,686,663.26 and 678,489.90 is: 936,216.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,350.04 : 1,686,663.26 = 678,489.90 : x
  2. Step 2: Convert to fraction form
    1,222,350.04/1,686,663.26 = 678,489.90/x
  3. Step 3: Cross multiply
    1,222,350.04x = 1,686,663.26 × 678,489.90
  4. Step 4: Simplify right side
    1,222,350.04x = 1,144,383,986,611.07
  5. Step 5: Solve for x
    x = 1,144,383,986,611.07/1,222,350.04
  6. Step 6: Final answer
    x = 936,216.26

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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.