Home / 1,200,907.87-1,657,089.19-717,370.37

Finding the Fourth Proportional to 1,200,907.87, 1,657,089.19 and 717,370.37

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Solution

The fourth proportional to 1,200,907.87, 1,657,089.19 and 717,370.37 is: 989,873.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,907.87 : 1,657,089.19 = 717,370.37 : x
  2. Step 2: Convert to fraction form
    1,200,907.87/1,657,089.19 = 717,370.37/x
  3. Step 3: Cross multiply
    1,200,907.87x = 1,657,089.19 × 717,370.37
  4. Step 4: Simplify right side
    1,200,907.87x = 1,188,746,681,766.45
  5. Step 5: Solve for x
    x = 1,188,746,681,766.45/1,200,907.87
  6. Step 6: Final answer
    x = 989,873.34

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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.