Home / 1,222,110.23-1,686,499.73-678,250.51

Finding the Fourth Proportional to 1,222,110.23, 1,686,499.73 and 678,250.51

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Solution

The fourth proportional to 1,222,110.23, 1,686,499.73 and 678,250.51 is: 935,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,110.23 : 1,686,499.73 = 678,250.51 : x
  2. Step 2: Convert to fraction form
    1,222,110.23/1,686,499.73 = 678,250.51/x
  3. Step 3: Cross multiply
    1,222,110.23x = 1,686,499.73 × 678,250.51
  4. Step 4: Simplify right side
    1,222,110.23x = 1,143,869,310,225.02
  5. Step 5: Solve for x
    x = 1,143,869,310,225.02/1,222,110.23
  6. Step 6: Final answer
    x = 935,978.84

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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.