Home / 1,217,193.36-1,679,160.80-787,612.16

Finding the Fourth Proportional to 1,217,193.36, 1,679,160.80 and 787,612.16

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Solution

The fourth proportional to 1,217,193.36, 1,679,160.80 and 787,612.16 is: 1,086,538.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,193.36 : 1,679,160.80 = 787,612.16 : x
  2. Step 2: Convert to fraction form
    1,217,193.36/1,679,160.80 = 787,612.16/x
  3. Step 3: Cross multiply
    1,217,193.36x = 1,679,160.80 × 787,612.16
  4. Step 4: Simplify right side
    1,217,193.36x = 1,322,527,464,675.33
  5. Step 5: Solve for x
    x = 1,322,527,464,675.33/1,217,193.36
  6. Step 6: Final answer
    x = 1,086,538.51

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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.