Home / 1,117,728.71-1,542,502.82-627,784.42

Finding the Fourth Proportional to 1,117,728.71, 1,542,502.82 and 627,784.42

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Solution

The fourth proportional to 1,117,728.71, 1,542,502.82 and 627,784.42 is: 866,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,728.71 : 1,542,502.82 = 627,784.42 : x
  2. Step 2: Convert to fraction form
    1,117,728.71/1,542,502.82 = 627,784.42/x
  3. Step 3: Cross multiply
    1,117,728.71x = 1,542,502.82 × 627,784.42
  4. Step 4: Simplify right side
    1,117,728.71x = 968,359,235,063.14
  5. Step 5: Solve for x
    x = 968,359,235,063.14/1,117,728.71
  6. Step 6: Final answer
    x = 866,363.39

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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.