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Finding the Fourth Proportional to 424,885.73, 637,349.77 and 121,324.91

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Solution

The fourth proportional to 424,885.73, 637,349.77 and 121,324.91 is: 181,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,885.73 : 637,349.77 = 121,324.91 : x
  2. Step 2: Convert to fraction form
    424,885.73/637,349.77 = 121,324.91/x
  3. Step 3: Cross multiply
    424,885.73x = 637,349.77 × 121,324.91
  4. Step 4: Simplify right side
    424,885.73x = 77,326,403,483.77
  5. Step 5: Solve for x
    x = 77,326,403,483.77/424,885.73
  6. Step 6: Final answer
    x = 181,993.41

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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.