Home / 809,071.12-1,212,921.24-335,460.88

Finding the Fourth Proportional to 809,071.12, 1,212,921.24 and 335,460.88

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Solution

The fourth proportional to 809,071.12, 1,212,921.24 and 335,460.88 is: 502,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,071.12 : 1,212,921.24 = 335,460.88 : x
  2. Step 2: Convert to fraction form
    809,071.12/1,212,921.24 = 335,460.88/x
  3. Step 3: Cross multiply
    809,071.12x = 1,212,921.24 × 335,460.88
  4. Step 4: Simplify right side
    809,071.12x = 406,887,626,541.09
  5. Step 5: Solve for x
    x = 406,887,626,541.09/809,071.12
  6. Step 6: Final answer
    x = 502,907.12

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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.