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Finding the Fourth Proportional to 529,627.91, 730,871.15 and 300,206.34

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Solution

The fourth proportional to 529,627.91, 730,871.15 and 300,206.34 is: 414,276.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,627.91 : 730,871.15 = 300,206.34 : x
  2. Step 2: Convert to fraction form
    529,627.91/730,871.15 = 300,206.34/x
  3. Step 3: Cross multiply
    529,627.91x = 730,871.15 × 300,206.34
  4. Step 4: Simplify right side
    529,627.91x = 219,412,151,452.06
  5. Step 5: Solve for x
    x = 219,412,151,452.06/529,627.91
  6. Step 6: Final answer
    x = 414,276.04

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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.