Home / 1,255,815.13-1,881,556.14-687,605.20

Finding the Fourth Proportional to 1,255,815.13, 1,881,556.14 and 687,605.20

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Solution

The fourth proportional to 1,255,815.13, 1,881,556.14 and 687,605.20 is: 1,030,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,815.13 : 1,881,556.14 = 687,605.20 : x
  2. Step 2: Convert to fraction form
    1,255,815.13/1,881,556.14 = 687,605.20/x
  3. Step 3: Cross multiply
    1,255,815.13x = 1,881,556.14 × 687,605.20
  4. Step 4: Simplify right side
    1,255,815.13x = 1,293,767,785,955.93
  5. Step 5: Solve for x
    x = 1,293,767,785,955.93/1,255,815.13
  6. Step 6: Final answer
    x = 1,030,221.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.