Home / 1,280,334.78-1,766,838.96-707,413.68

Finding the Fourth Proportional to 1,280,334.78, 1,766,838.96 and 707,413.68

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Solution

The fourth proportional to 1,280,334.78, 1,766,838.96 and 707,413.68 is: 976,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,334.78 : 1,766,838.96 = 707,413.68 : x
  2. Step 2: Convert to fraction form
    1,280,334.78/1,766,838.96 = 707,413.68/x
  3. Step 3: Cross multiply
    1,280,334.78x = 1,766,838.96 × 707,413.68
  4. Step 4: Simplify right side
    1,280,334.78x = 1,249,886,050,660.97
  5. Step 5: Solve for x
    x = 1,249,886,050,660.97/1,280,334.78
  6. Step 6: Final answer
    x = 976,218.15

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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.