Home / 1,138,672.87-1,571,368.48-622,428.93

Finding the Fourth Proportional to 1,138,672.87, 1,571,368.48 and 622,428.93

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Solution

The fourth proportional to 1,138,672.87, 1,571,368.48 and 622,428.93 is: 858,951.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,672.87 : 1,571,368.48 = 622,428.93 : x
  2. Step 2: Convert to fraction form
    1,138,672.87/1,571,368.48 = 622,428.93/x
  3. Step 3: Cross multiply
    1,138,672.87x = 1,571,368.48 × 622,428.93
  4. Step 4: Simplify right side
    1,138,672.87x = 978,065,200,086.05
  5. Step 5: Solve for x
    x = 978,065,200,086.05/1,138,672.87
  6. Step 6: Final answer
    x = 858,951.88

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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.