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Finding the Fourth Proportional to 1,292,625.54, 1,936,050.93 and 936,822.78

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Solution

The fourth proportional to 1,292,625.54, 1,936,050.93 and 936,822.78 is: 1,403,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,625.54 : 1,936,050.93 = 936,822.78 : x
  2. Step 2: Convert to fraction form
    1,292,625.54/1,936,050.93 = 936,822.78/x
  3. Step 3: Cross multiply
    1,292,625.54x = 1,936,050.93 × 936,822.78
  4. Step 4: Simplify right side
    1,292,625.54x = 1,813,736,614,464.19
  5. Step 5: Solve for x
    x = 1,813,736,614,464.19/1,292,625.54
  6. Step 6: Final answer
    x = 1,403,141.56

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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.