Home / 1,538,975.72-2,123,720.70-850,612.34

Finding the Fourth Proportional to 1,538,975.72, 2,123,720.70 and 850,612.34

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Solution

The fourth proportional to 1,538,975.72, 2,123,720.70 and 850,612.34 is: 1,173,808.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,975.72 : 2,123,720.70 = 850,612.34 : x
  2. Step 2: Convert to fraction form
    1,538,975.72/2,123,720.70 = 850,612.34/x
  3. Step 3: Cross multiply
    1,538,975.72x = 2,123,720.70 × 850,612.34
  4. Step 4: Simplify right side
    1,538,975.72x = 1,806,463,034,133.44
  5. Step 5: Solve for x
    x = 1,806,463,034,133.44/1,538,975.72
  6. Step 6: Final answer
    x = 1,173,808.66

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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.