Home / 1,287,848.66-1,777,142.16-714,843.68

Finding the Fourth Proportional to 1,287,848.66, 1,777,142.16 and 714,843.68

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Solution

The fourth proportional to 1,287,848.66, 1,777,142.16 and 714,843.68 is: 986,434.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,848.66 : 1,777,142.16 = 714,843.68 : x
  2. Step 2: Convert to fraction form
    1,287,848.66/1,777,142.16 = 714,843.68/x
  3. Step 3: Cross multiply
    1,287,848.66x = 1,777,142.16 × 714,843.68
  4. Step 4: Simplify right side
    1,287,848.66x = 1,270,378,841,537.55
  5. Step 5: Solve for x
    x = 1,270,378,841,537.55/1,287,848.66
  6. Step 6: Final answer
    x = 986,434.88

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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.