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Finding the Fourth Proportional to 589,492.44, 813,499.38 and 321,220.44

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Solution

The fourth proportional to 589,492.44, 813,499.38 and 321,220.44 is: 443,284.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,492.44 : 813,499.38 = 321,220.44 : x
  2. Step 2: Convert to fraction form
    589,492.44/813,499.38 = 321,220.44/x
  3. Step 3: Cross multiply
    589,492.44x = 813,499.38 × 321,220.44
  4. Step 4: Simplify right side
    589,492.44x = 261,312,628,783.33
  5. Step 5: Solve for x
    x = 261,312,628,783.33/589,492.44
  6. Step 6: Final answer
    x = 443,284.11

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1.5x scale

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.