Home / 1,260,888.72-1,740,020.64-687,927.12

Finding the Fourth Proportional to 1,260,888.72, 1,740,020.64 and 687,927.12

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Solution

The fourth proportional to 1,260,888.72, 1,740,020.64 and 687,927.12 is: 949,336.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,888.72 : 1,740,020.64 = 687,927.12 : x
  2. Step 2: Convert to fraction form
    1,260,888.72/1,740,020.64 = 687,927.12/x
  3. Step 3: Cross multiply
    1,260,888.72x = 1,740,020.64 × 687,927.12
  4. Step 4: Simplify right side
    1,260,888.72x = 1,197,007,387,615.76
  5. Step 5: Solve for x
    x = 1,197,007,387,615.76/1,260,888.72
  6. Step 6: Final answer
    x = 949,336.26

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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.