Home / 1,284,515.28-1,772,631.12-711,592.56

Finding the Fourth Proportional to 1,284,515.28, 1,772,631.12 and 711,592.56

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Solution

The fourth proportional to 1,284,515.28, 1,772,631.12 and 711,592.56 is: 981,997.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,515.28 : 1,772,631.12 = 711,592.56 : x
  2. Step 2: Convert to fraction form
    1,284,515.28/1,772,631.12 = 711,592.56/x
  3. Step 3: Cross multiply
    1,284,515.28x = 1,772,631.12 × 711,592.56
  4. Step 4: Simplify right side
    1,284,515.28x = 1,261,391,116,616.47
  5. Step 5: Solve for x
    x = 1,261,391,116,616.47/1,284,515.28
  6. Step 6: Final answer
    x = 981,997.75

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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.