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Finding the Fourth Proportional to 529,410.80, 730,614.80 and 300,012.59

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Solution

The fourth proportional to 529,410.80, 730,614.80 and 300,012.59 is: 414,033.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,410.80 : 730,614.80 = 300,012.59 : x
  2. Step 2: Convert to fraction form
    529,410.80/730,614.80 = 300,012.59/x
  3. Step 3: Cross multiply
    529,410.80x = 730,614.80 × 300,012.59
  4. Step 4: Simplify right side
    529,410.80x = 219,193,641,016.90
  5. Step 5: Solve for x
    x = 219,193,641,016.90/529,410.80
  6. Step 6: Final answer
    x = 414,033.19

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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.