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Finding the Fourth Proportional to 561,413.19, 774,731.72 and 354,792.02

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Solution

The fourth proportional to 561,413.19, 774,731.72 and 354,792.02 is: 489,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,413.19 : 774,731.72 = 354,792.02 : x
  2. Step 2: Convert to fraction form
    561,413.19/774,731.72 = 354,792.02/x
  3. Step 3: Cross multiply
    561,413.19x = 774,731.72 × 354,792.02
  4. Step 4: Simplify right side
    561,413.19x = 274,868,628,910.20
  5. Step 5: Solve for x
    x = 274,868,628,910.20/561,413.19
  6. Step 6: Final answer
    x = 489,601.30

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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.