Home / 853,484.41-1,280,417.24-321,010.05

Finding the Fourth Proportional to 853,484.41, 1,280,417.24 and 321,010.05

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Solution

The fourth proportional to 853,484.41, 1,280,417.24 and 321,010.05 is: 481,586.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,484.41 : 1,280,417.24 = 321,010.05 : x
  2. Step 2: Convert to fraction form
    853,484.41/1,280,417.24 = 321,010.05/x
  3. Step 3: Cross multiply
    853,484.41x = 1,280,417.24 × 321,010.05
  4. Step 4: Simplify right side
    853,484.41x = 411,026,802,233.26
  5. Step 5: Solve for x
    x = 411,026,802,233.26/853,484.41
  6. Step 6: Final answer
    x = 481,586.77

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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.