Home / 1,200,905.80-1,657,086.33-717,368.30

Finding the Fourth Proportional to 1,200,905.80, 1,657,086.33 and 717,368.30

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Solution

The fourth proportional to 1,200,905.80, 1,657,086.33 and 717,368.30 is: 989,870.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,905.80 : 1,657,086.33 = 717,368.30 : x
  2. Step 2: Convert to fraction form
    1,200,905.80/1,657,086.33 = 717,368.30/x
  3. Step 3: Cross multiply
    1,200,905.80x = 1,657,086.33 × 717,368.30
  4. Step 4: Simplify right side
    1,200,905.80x = 1,188,741,202,106.51
  5. Step 5: Solve for x
    x = 1,188,741,202,106.51/1,200,905.80
  6. Step 6: Final answer
    x = 989,870.48

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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.