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Finding the Fourth Proportional to 831,596.61, 1,246,858.61 and 326,208.68

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Solution

The fourth proportional to 831,596.61, 1,246,858.61 and 326,208.68 is: 489,102.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,596.61 : 1,246,858.61 = 326,208.68 : x
  2. Step 2: Convert to fraction form
    831,596.61/1,246,858.61 = 326,208.68/x
  3. Step 3: Cross multiply
    831,596.61x = 1,246,858.61 × 326,208.68
  4. Step 4: Simplify right side
    831,596.61x = 406,736,093,449.40
  5. Step 5: Solve for x
    x = 406,736,093,449.40/831,596.61
  6. Step 6: Final answer
    x = 489,102.64

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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.