Home / 1,015,934.16-1,401,705.36-800,406.12

Finding the Fourth Proportional to 1,015,934.16, 1,401,705.36 and 800,406.12

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Solution

The fourth proportional to 1,015,934.16, 1,401,705.36 and 800,406.12 is: 1,104,336.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,934.16 : 1,401,705.36 = 800,406.12 : x
  2. Step 2: Convert to fraction form
    1,015,934.16/1,401,705.36 = 800,406.12/x
  3. Step 3: Cross multiply
    1,015,934.16x = 1,401,705.36 × 800,406.12
  4. Step 4: Simplify right side
    1,015,934.16x = 1,121,933,548,580.80
  5. Step 5: Solve for x
    x = 1,121,933,548,580.80/1,015,934.16
  6. Step 6: Final answer
    x = 1,104,336.87

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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.