Home / 536,511.21-740,449.85-321,769.41

Finding the Fourth Proportional to 536,511.21, 740,449.85 and 321,769.41

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Solution

The fourth proportional to 536,511.21, 740,449.85 and 321,769.41 is: 444,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,511.21 : 740,449.85 = 321,769.41 : x
  2. Step 2: Convert to fraction form
    536,511.21/740,449.85 = 321,769.41/x
  3. Step 3: Cross multiply
    536,511.21x = 740,449.85 × 321,769.41
  4. Step 4: Simplify right side
    536,511.21x = 238,254,111,369.09
  5. Step 5: Solve for x
    x = 238,254,111,369.09/536,511.21
  6. Step 6: Final answer
    x = 444,080.40

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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.