Home / 853,823.55-1,280,735.33-321,464.01

Finding the Fourth Proportional to 853,823.55, 1,280,735.33 and 321,464.01

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Solution

The fourth proportional to 853,823.55, 1,280,735.33 and 321,464.01 is: 482,196.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,823.55 : 1,280,735.33 = 321,464.01 : x
  2. Step 2: Convert to fraction form
    853,823.55/1,280,735.33 = 321,464.01/x
  3. Step 3: Cross multiply
    853,823.55x = 1,280,735.33 × 321,464.01
  4. Step 4: Simplify right side
    853,823.55x = 411,710,314,930.47
  5. Step 5: Solve for x
    x = 411,710,314,930.47/853,823.55
  6. Step 6: Final answer
    x = 482,196.02

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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.