Home / 1,219,677.21-1,829,349.74-321,043.70

Finding the Fourth Proportional to 1,219,677.21, 1,829,349.74 and 321,043.70

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Solution

The fourth proportional to 1,219,677.21, 1,829,349.74 and 321,043.70 is: 481,521.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,677.21 : 1,829,349.74 = 321,043.70 : x
  2. Step 2: Convert to fraction form
    1,219,677.21/1,829,349.74 = 321,043.70/x
  3. Step 3: Cross multiply
    1,219,677.21x = 1,829,349.74 × 321,043.70
  4. Step 4: Simplify right side
    1,219,677.21x = 587,301,199,976.89
  5. Step 5: Solve for x
    x = 587,301,199,976.89/1,219,677.21
  6. Step 6: Final answer
    x = 481,521.83

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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.