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Finding the Fourth Proportional to 444,871.40, 667,307.10 and 390,633.80

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Solution

The fourth proportional to 444,871.40, 667,307.10 and 390,633.80 is: 585,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,871.40 : 667,307.10 = 390,633.80 : x
  2. Step 2: Convert to fraction form
    444,871.40/667,307.10 = 390,633.80/x
  3. Step 3: Cross multiply
    444,871.40x = 667,307.10 × 390,633.80
  4. Step 4: Simplify right side
    444,871.40x = 260,672,708,239.98
  5. Step 5: Solve for x
    x = 260,672,708,239.98/444,871.40
  6. Step 6: Final answer
    x = 585,950.70

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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.