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Finding the Fourth Proportional to 529,832.08, 731,146 and 300,404.80

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Solution

The fourth proportional to 529,832.08, 731,146 and 300,404.80 is: 414,546.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,832.08 : 731,146 = 300,404.80 : x
  2. Step 2: Convert to fraction form
    529,832.08/731,146 = 300,404.80/x
  3. Step 3: Cross multiply
    529,832.08x = 731,146 × 300,404.80
  4. Step 4: Simplify right side
    529,832.08x = 219,639,767,900.80
  5. Step 5: Solve for x
    x = 219,639,767,900.80/529,832.08
  6. Step 6: Final answer
    x = 414,546.00

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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.