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Finding the Fourth Proportional to 439,733.80, 659,600.70 and 299,765.80

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Solution

The fourth proportional to 439,733.80, 659,600.70 and 299,765.80 is: 449,648.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,733.80 : 659,600.70 = 299,765.80 : x
  2. Step 2: Convert to fraction form
    439,733.80/659,600.70 = 299,765.80/x
  3. Step 3: Cross multiply
    439,733.80x = 659,600.70 × 299,765.80
  4. Step 4: Simplify right side
    439,733.80x = 197,725,731,516.06
  5. Step 5: Solve for x
    x = 197,725,731,516.06/439,733.80
  6. Step 6: Final answer
    x = 449,648.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.