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Finding the Fourth Proportional to 529,701.34, 730,972.46 and 300,279.92

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Solution

The fourth proportional to 529,701.34, 730,972.46 and 300,279.92 is: 414,377.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,701.34 : 730,972.46 = 300,279.92 : x
  2. Step 2: Convert to fraction form
    529,701.34/730,972.46 = 300,279.92/x
  3. Step 3: Cross multiply
    529,701.34x = 730,972.46 × 300,279.92
  4. Step 4: Simplify right side
    529,701.34x = 219,496,351,811.00
  5. Step 5: Solve for x
    x = 219,496,351,811.00/529,701.34
  6. Step 6: Final answer
    x = 414,377.57

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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.