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Finding the Fourth Proportional to 328,832.60, 492,714.30 and 297,339.80

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Solution

The fourth proportional to 328,832.60, 492,714.30 and 297,339.80 is: 445,526.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,832.60 : 492,714.30 = 297,339.80 : x
  2. Step 2: Convert to fraction form
    328,832.60/492,714.30 = 297,339.80/x
  3. Step 3: Cross multiply
    328,832.60x = 492,714.30 × 297,339.80
  4. Step 4: Simplify right side
    328,832.60x = 146,503,571,419.14
  5. Step 5: Solve for x
    x = 146,503,571,419.14/328,832.60
  6. Step 6: Final answer
    x = 445,526.30

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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.