Home / 1,257,413.78-1,735,160.64-684,419.78

Finding the Fourth Proportional to 1,257,413.78, 1,735,160.64 and 684,419.78

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Solution

The fourth proportional to 1,257,413.78, 1,735,160.64 and 684,419.78 is: 944,460.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,413.78 : 1,735,160.64 = 684,419.78 : x
  2. Step 2: Convert to fraction form
    1,257,413.78/1,735,160.64 = 684,419.78/x
  3. Step 3: Cross multiply
    1,257,413.78x = 1,735,160.64 × 684,419.78
  4. Step 4: Simplify right side
    1,257,413.78x = 1,187,578,263,493.46
  5. Step 5: Solve for x
    x = 1,187,578,263,493.46/1,257,413.78
  6. Step 6: Final answer
    x = 944,460.99

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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.