Home / 1,260,751.74-1,739,802.96-687,791.76

Finding the Fourth Proportional to 1,260,751.74, 1,739,802.96 and 687,791.76

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Solution

The fourth proportional to 1,260,751.74, 1,739,802.96 and 687,791.76 is: 949,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,751.74 : 1,739,802.96 = 687,791.76 : x
  2. Step 2: Convert to fraction form
    1,260,751.74/1,739,802.96 = 687,791.76/x
  3. Step 3: Cross multiply
    1,260,751.74x = 1,739,802.96 × 687,791.76
  4. Step 4: Simplify right side
    1,260,751.74x = 1,196,622,139,911.61
  5. Step 5: Solve for x
    x = 1,196,622,139,911.61/1,260,751.74
  6. Step 6: Final answer
    x = 949,133.84

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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.