Home / 1,287,771.25-1,777,035.37-714,766.31

Finding the Fourth Proportional to 1,287,771.25, 1,777,035.37 and 714,766.31

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Solution

The fourth proportional to 1,287,771.25, 1,777,035.37 and 714,766.31 is: 986,328.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,771.25 : 1,777,035.37 = 714,766.31 : x
  2. Step 2: Convert to fraction form
    1,287,771.25/1,777,035.37 = 714,766.31/x
  3. Step 3: Cross multiply
    1,287,771.25x = 1,777,035.37 × 714,766.31
  4. Step 4: Simplify right side
    1,287,771.25x = 1,270,165,014,154.38
  5. Step 5: Solve for x
    x = 1,270,165,014,154.38/1,287,771.25
  6. Step 6: Final answer
    x = 986,328.13

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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.