Home / 320,431.83-480,675.02-83,774.13

Finding the Fourth Proportional to 320,431.83, 480,675.02 and 83,774.13

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Solution

The fourth proportional to 320,431.83, 480,675.02 and 83,774.13 is: 125,668.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,431.83 : 480,675.02 = 83,774.13 : x
  2. Step 2: Convert to fraction form
    320,431.83/480,675.02 = 83,774.13/x
  3. Step 3: Cross multiply
    320,431.83x = 480,675.02 × 83,774.13
  4. Step 4: Simplify right side
    320,431.83x = 40,268,131,194.36
  5. Step 5: Solve for x
    x = 40,268,131,194.36/320,431.83
  6. Step 6: Final answer
    x = 125,668.32

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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.