Home / 812,741.49-1,219,116.29-333,231.21

Finding the Fourth Proportional to 812,741.49, 1,219,116.29 and 333,231.21

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Solution

The fourth proportional to 812,741.49, 1,219,116.29 and 333,231.21 is: 499,848.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,741.49 : 1,219,116.29 = 333,231.21 : x
  2. Step 2: Convert to fraction form
    812,741.49/1,219,116.29 = 333,231.21/x
  3. Step 3: Cross multiply
    812,741.49x = 1,219,116.29 × 333,231.21
  4. Step 4: Simplify right side
    812,741.49x = 406,247,594,781.26
  5. Step 5: Solve for x
    x = 406,247,594,781.26/812,741.49
  6. Step 6: Final answer
    x = 499,848.48

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Double scale
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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.