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Finding the Fourth Proportional to 601,959.70, 830,704.17 and 330,021.78

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Solution

The fourth proportional to 601,959.70, 830,704.17 and 330,021.78 is: 455,429.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,959.70 : 830,704.17 = 330,021.78 : x
  2. Step 2: Convert to fraction form
    601,959.70/830,704.17 = 330,021.78/x
  3. Step 3: Cross multiply
    601,959.70x = 830,704.17 × 330,021.78
  4. Step 4: Simplify right side
    601,959.70x = 274,150,468,836.82
  5. Step 5: Solve for x
    x = 274,150,468,836.82/601,959.70
  6. Step 6: Final answer
    x = 455,429.94

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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.