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Finding the Fourth Proportional to 529,722.75, 730,855.80 and 300,243.27

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Solution

The fourth proportional to 529,722.75, 730,855.80 and 300,243.27 is: 414,244.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,722.75 : 730,855.80 = 300,243.27 : x
  2. Step 2: Convert to fraction form
    529,722.75/730,855.80 = 300,243.27/x
  3. Step 3: Cross multiply
    529,722.75x = 730,855.80 × 300,243.27
  4. Step 4: Simplify right side
    529,722.75x = 219,434,535,290.47
  5. Step 5: Solve for x
    x = 219,434,535,290.47/529,722.75
  6. Step 6: Final answer
    x = 414,244.12

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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.