Home / 1,288,172.16-1,774,753.38-996,781.86

Finding the Fourth Proportional to 1,288,172.16, 1,774,753.38 and 996,781.86

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Solution

The fourth proportional to 1,288,172.16, 1,774,753.38 and 996,781.86 is: 1,373,296.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,172.16 : 1,774,753.38 = 996,781.86 : x
  2. Step 2: Convert to fraction form
    1,288,172.16/1,774,753.38 = 996,781.86/x
  3. Step 3: Cross multiply
    1,288,172.16x = 1,774,753.38 × 996,781.86
  4. Step 4: Simplify right side
    1,288,172.16x = 1,769,041,975,157.69
  5. Step 5: Solve for x
    x = 1,769,041,975,157.69/1,288,172.16
  6. Step 6: Final answer
    x = 1,373,296.23

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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.