Home / 1,570,901.31-2,169,122.19-1,280,558.43

Finding the Fourth Proportional to 1,570,901.31, 2,169,122.19 and 1,280,558.43

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Solution

The fourth proportional to 1,570,901.31, 2,169,122.19 and 1,280,558.43 is: 1,768,212.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,901.31 : 2,169,122.19 = 1,280,558.43 : x
  2. Step 2: Convert to fraction form
    1,570,901.31/2,169,122.19 = 1,280,558.43/x
  3. Step 3: Cross multiply
    1,570,901.31x = 2,169,122.19 × 1,280,558.43
  4. Step 4: Simplify right side
    1,570,901.31x = 2,777,687,706,104.56
  5. Step 5: Solve for x
    x = 2,777,687,706,104.56/1,570,901.31
  6. Step 6: Final answer
    x = 1,768,212.74

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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.