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Finding the Fourth Proportional to 569,413.01, 785,799.27 and 339,990.35

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Solution

The fourth proportional to 569,413.01, 785,799.27 and 339,990.35 is: 469,192.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,413.01 : 785,799.27 = 339,990.35 : x
  2. Step 2: Convert to fraction form
    569,413.01/785,799.27 = 339,990.35/x
  3. Step 3: Cross multiply
    569,413.01x = 785,799.27 × 339,990.35
  4. Step 4: Simplify right side
    569,413.01x = 267,164,164,908.05
  5. Step 5: Solve for x
    x = 267,164,164,908.05/569,413.01
  6. Step 6: Final answer
    x = 469,192.24

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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.