Home / 831,684.32-1,246,990.12-326,296.38

Finding the Fourth Proportional to 831,684.32, 1,246,990.12 and 326,296.38

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Solution

The fourth proportional to 831,684.32, 1,246,990.12 and 326,296.38 is: 489,234.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,684.32 : 1,246,990.12 = 326,296.38 : x
  2. Step 2: Convert to fraction form
    831,684.32/1,246,990.12 = 326,296.38/x
  3. Step 3: Cross multiply
    831,684.32x = 1,246,990.12 × 326,296.38
  4. Step 4: Simplify right side
    831,684.32x = 406,888,355,744.07
  5. Step 5: Solve for x
    x = 406,888,355,744.07/831,684.32
  6. Step 6: Final answer
    x = 489,234.13

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Double scale
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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.