Home / 1,287,767.70-1,777,200.08-714,817.44

Finding the Fourth Proportional to 1,287,767.70, 1,777,200.08 and 714,817.44

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Solution

The fourth proportional to 1,287,767.70, 1,777,200.08 and 714,817.44 is: 986,492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,767.70 : 1,777,200.08 = 714,817.44 : x
  2. Step 2: Convert to fraction form
    1,287,767.70/1,777,200.08 = 714,817.44/x
  3. Step 3: Cross multiply
    1,287,767.70x = 1,777,200.08 × 714,817.44
  4. Step 4: Simplify right side
    1,287,767.70x = 1,270,373,607,979.31
  5. Step 5: Solve for x
    x = 1,270,373,607,979.31/1,287,767.70
  6. Step 6: Final answer
    x = 986,492.83

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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.