Home / 791,972.18-1,091,864.31-629,168.87

Finding the Fourth Proportional to 791,972.18, 1,091,864.31 and 629,168.87

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Solution

The fourth proportional to 791,972.18, 1,091,864.31 and 629,168.87 is: 867,413.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,972.18 : 1,091,864.31 = 629,168.87 : x
  2. Step 2: Convert to fraction form
    791,972.18/1,091,864.31 = 629,168.87/x
  3. Step 3: Cross multiply
    791,972.18x = 1,091,864.31 × 629,168.87
  4. Step 4: Simplify right side
    791,972.18x = 686,967,028,656.71
  5. Step 5: Solve for x
    x = 686,967,028,656.71/791,972.18
  6. Step 6: Final answer
    x = 867,413.08

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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.