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Finding the Fourth Proportional to 589,612.62, 813,413.25 and 385,308.93

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Solution

The fourth proportional to 589,612.62, 813,413.25 and 385,308.93 is: 531,561.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,612.62 : 813,413.25 = 385,308.93 : x
  2. Step 2: Convert to fraction form
    589,612.62/813,413.25 = 385,308.93/x
  3. Step 3: Cross multiply
    589,612.62x = 813,413.25 × 385,308.93
  4. Step 4: Simplify right side
    589,612.62x = 313,415,389,005.32
  5. Step 5: Solve for x
    x = 313,415,389,005.32/589,612.62
  6. Step 6: Final answer
    x = 531,561.53

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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.