Home / 320,985.72-481,480.98-84,327.96

Finding the Fourth Proportional to 320,985.72, 481,480.98 and 84,327.96

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Solution

The fourth proportional to 320,985.72, 481,480.98 and 84,327.96 is: 126,492.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,985.72 : 481,480.98 = 84,327.96 : x
  2. Step 2: Convert to fraction form
    320,985.72/481,480.98 = 84,327.96/x
  3. Step 3: Cross multiply
    320,985.72x = 481,480.98 × 84,327.96
  4. Step 4: Simplify right side
    320,985.72x = 40,602,308,822.20
  5. Step 5: Solve for x
    x = 40,602,308,822.20/320,985.72
  6. Step 6: Final answer
    x = 126,492.57

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1.5x scale

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.