Home / 831,998.37-1,248,184.21-263,413.46

Finding the Fourth Proportional to 831,998.37, 1,248,184.21 and 263,413.46

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Solution

The fourth proportional to 831,998.37, 1,248,184.21 and 263,413.46 is: 395,179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,998.37 : 1,248,184.21 = 263,413.46 : x
  2. Step 2: Convert to fraction form
    831,998.37/1,248,184.21 = 263,413.46/x
  3. Step 3: Cross multiply
    831,998.37x = 1,248,184.21 × 263,413.46
  4. Step 4: Simplify right side
    831,998.37x = 328,788,521,473.47
  5. Step 5: Solve for x
    x = 328,788,521,473.47/831,998.37
  6. Step 6: Final answer
    x = 395,179.29

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.