Home / 1,267,170.86-1,748,685.84-686,381.42

Finding the Fourth Proportional to 1,267,170.86, 1,748,685.84 and 686,381.42

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Solution

The fourth proportional to 1,267,170.86, 1,748,685.84 and 686,381.42 is: 947,200.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,170.86 : 1,748,685.84 = 686,381.42 : x
  2. Step 2: Convert to fraction form
    1,267,170.86/1,748,685.84 = 686,381.42/x
  3. Step 3: Cross multiply
    1,267,170.86x = 1,748,685.84 × 686,381.42
  4. Step 4: Simplify right side
    1,267,170.86x = 1,200,265,469,993.09
  5. Step 5: Solve for x
    x = 1,200,265,469,993.09/1,267,170.86
  6. Step 6: Final answer
    x = 947,200.97

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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.