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Finding the Fourth Proportional to 531,229.21, 733,122.30 and 298,729.32

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Solution

The fourth proportional to 531,229.21, 733,122.30 and 298,729.32 is: 412,261.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,229.21 : 733,122.30 = 298,729.32 : x
  2. Step 2: Convert to fraction form
    531,229.21/733,122.30 = 298,729.32/x
  3. Step 3: Cross multiply
    531,229.21x = 733,122.30 × 298,729.32
  4. Step 4: Simplify right side
    531,229.21x = 219,005,124,492.61
  5. Step 5: Solve for x
    x = 219,005,124,492.61/531,229.21
  6. Step 6: Final answer
    x = 412,261.08

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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.