Home / 1,288,413.36-1,932,226.35-614,139.42

Finding the Fourth Proportional to 1,288,413.36, 1,932,226.35 and 614,139.42

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Solution

The fourth proportional to 1,288,413.36, 1,932,226.35 and 614,139.42 is: 921,021.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,413.36 : 1,932,226.35 = 614,139.42 : x
  2. Step 2: Convert to fraction form
    1,288,413.36/1,932,226.35 = 614,139.42/x
  3. Step 3: Cross multiply
    1,288,413.36x = 1,932,226.35 × 614,139.42
  4. Step 4: Simplify right side
    1,288,413.36x = 1,186,656,369,897.72
  5. Step 5: Solve for x
    x = 1,186,656,369,897.72/1,288,413.36
  6. Step 6: Final answer
    x = 921,021.47

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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.