Home / 422,916.48-634,312.98-123,316.56

Finding the Fourth Proportional to 422,916.48, 634,312.98 and 123,316.56

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Solution

The fourth proportional to 422,916.48, 634,312.98 and 123,316.56 is: 184,956.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,916.48 : 634,312.98 = 123,316.56 : x
  2. Step 2: Convert to fraction form
    422,916.48/634,312.98 = 123,316.56/x
  3. Step 3: Cross multiply
    422,916.48x = 634,312.98 × 123,316.56
  4. Step 4: Simplify right side
    422,916.48x = 78,221,294,656.95
  5. Step 5: Solve for x
    x = 78,221,294,656.95/422,916.48
  6. Step 6: Final answer
    x = 184,956.84

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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.