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Finding the Fourth Proportional to 439,598.76, 659,480.06 and 199,729.48

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Solution

The fourth proportional to 439,598.76, 659,480.06 and 199,729.48 is: 299,631.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,598.76 : 659,480.06 = 199,729.48 : x
  2. Step 2: Convert to fraction form
    439,598.76/659,480.06 = 199,729.48/x
  3. Step 3: Cross multiply
    439,598.76x = 659,480.06 × 199,729.48
  4. Step 4: Simplify right side
    439,598.76x = 131,717,609,454.17
  5. Step 5: Solve for x
    x = 131,717,609,454.17/439,598.76
  6. Step 6: Final answer
    x = 299,631.44

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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.