Home / 1,287,935.22-1,777,261.56-714,930.30

Finding the Fourth Proportional to 1,287,935.22, 1,777,261.56 and 714,930.30

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Solution

The fourth proportional to 1,287,935.22, 1,777,261.56 and 714,930.30 is: 986,554.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,935.22 : 1,777,261.56 = 714,930.30 : x
  2. Step 2: Convert to fraction form
    1,287,935.22/1,777,261.56 = 714,930.30/x
  3. Step 3: Cross multiply
    1,287,935.22x = 1,777,261.56 × 714,930.30
  4. Step 4: Simplify right side
    1,287,935.22x = 1,270,618,140,269.27
  5. Step 5: Solve for x
    x = 1,270,618,140,269.27/1,287,935.22
  6. Step 6: Final answer
    x = 986,554.39

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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.