Home / 880,461.36-1,321,216.72-319,539.60

Finding the Fourth Proportional to 880,461.36, 1,321,216.72 and 319,539.60

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Solution

The fourth proportional to 880,461.36, 1,321,216.72 and 319,539.60 is: 479,499.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,461.36 : 1,321,216.72 = 319,539.60 : x
  2. Step 2: Convert to fraction form
    880,461.36/1,321,216.72 = 319,539.60/x
  3. Step 3: Cross multiply
    880,461.36x = 1,321,216.72 × 319,539.60
  4. Step 4: Simplify right side
    880,461.36x = 422,181,062,222.11
  5. Step 5: Solve for x
    x = 422,181,062,222.11/880,461.36
  6. Step 6: Final answer
    x = 479,499.82

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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.