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Finding the Fourth Proportional to 1,295,567.82, 1,787,886 and 722,645.10

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Solution

The fourth proportional to 1,295,567.82, 1,787,886 and 722,645.10 is: 997,251.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,567.82 : 1,787,886 = 722,645.10 : x
  2. Step 2: Convert to fraction form
    1,295,567.82/1,787,886 = 722,645.10/x
  3. Step 3: Cross multiply
    1,295,567.82x = 1,787,886 × 722,645.10
  4. Step 4: Simplify right side
    1,295,567.82x = 1,292,007,057,258.60
  5. Step 5: Solve for x
    x = 1,292,007,057,258.60/1,295,567.82
  6. Step 6: Final answer
    x = 997,251.58

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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.