Home / 1,287,180-1,776,393.27-743,338.62

Finding the Fourth Proportional to 1,287,180, 1,776,393.27 and 743,338.62

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Solution

The fourth proportional to 1,287,180, 1,776,393.27 and 743,338.62 is: 1,025,856.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,180 : 1,776,393.27 = 743,338.62 : x
  2. Step 2: Convert to fraction form
    1,287,180/1,776,393.27 = 743,338.62/x
  3. Step 3: Cross multiply
    1,287,180x = 1,776,393.27 × 743,338.62
  4. Step 4: Simplify right side
    1,287,180x = 1,320,461,721,899.09
  5. Step 5: Solve for x
    x = 1,320,461,721,899.09/1,287,180
  6. Step 6: Final answer
    x = 1,025,856.31

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1.5x scale

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.