Home / 1,287,539.24-1,776,721.38-714,579.80

Finding the Fourth Proportional to 1,287,539.24, 1,776,721.38 and 714,579.80

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Solution

The fourth proportional to 1,287,539.24, 1,776,721.38 and 714,579.80 is: 986,074.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,539.24 : 1,776,721.38 = 714,579.80 : x
  2. Step 2: Convert to fraction form
    1,287,539.24/1,776,721.38 = 714,579.80/x
  3. Step 3: Cross multiply
    1,287,539.24x = 1,776,721.38 × 714,579.80
  4. Step 4: Simplify right side
    1,287,539.24x = 1,269,609,208,376.12
  5. Step 5: Solve for x
    x = 1,269,609,208,376.12/1,287,539.24
  6. Step 6: Final answer
    x = 986,074.19

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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.