Home / 1,219,756.26-1,829,740.10-321,190.86

Finding the Fourth Proportional to 1,219,756.26, 1,829,740.10 and 321,190.86

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Solution

The fourth proportional to 1,219,756.26, 1,829,740.10 and 321,190.86 is: 481,814.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,756.26 : 1,829,740.10 = 321,190.86 : x
  2. Step 2: Convert to fraction form
    1,219,756.26/1,829,740.10 = 321,190.86/x
  3. Step 3: Cross multiply
    1,219,756.26x = 1,829,740.10 × 321,190.86
  4. Step 4: Simplify right side
    1,219,756.26x = 587,695,794,689.53
  5. Step 5: Solve for x
    x = 587,695,794,689.53/1,219,756.26
  6. Step 6: Final answer
    x = 481,814.12

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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.