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Finding the Fourth Proportional to 569,413.51, 785,799.96 and 339,990.85

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Solution

The fourth proportional to 569,413.51, 785,799.96 and 339,990.85 is: 469,192.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,413.51 : 785,799.96 = 339,990.85 : x
  2. Step 2: Convert to fraction form
    569,413.51/785,799.96 = 339,990.85/x
  3. Step 3: Cross multiply
    569,413.51x = 785,799.96 × 339,990.85
  4. Step 4: Simplify right side
    569,413.51x = 267,164,792,401.37
  5. Step 5: Solve for x
    x = 267,164,792,401.37/569,413.51
  6. Step 6: Final answer
    x = 469,192.93

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1.5x scale

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.