Home / 1,265,877.78-1,898,816.61-379,413.78

Finding the Fourth Proportional to 1,265,877.78, 1,898,816.61 and 379,413.78

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Solution

The fourth proportional to 1,265,877.78, 1,898,816.61 and 379,413.78 is: 569,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,877.78 : 1,898,816.61 = 379,413.78 : x
  2. Step 2: Convert to fraction form
    1,265,877.78/1,898,816.61 = 379,413.78/x
  3. Step 3: Cross multiply
    1,265,877.78x = 1,898,816.61 × 379,413.78
  4. Step 4: Simplify right side
    1,265,877.78x = 720,437,187,526.89
  5. Step 5: Solve for x
    x = 720,437,187,526.89/1,265,877.78
  6. Step 6: Final answer
    x = 569,120.65

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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.