Home / 902,403.96-1,245,317.49-499,995.96

Finding the Fourth Proportional to 902,403.96, 1,245,317.49 and 499,995.96

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Solution

The fourth proportional to 902,403.96, 1,245,317.49 and 499,995.96 is: 689,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,403.96 : 1,245,317.49 = 499,995.96 : x
  2. Step 2: Convert to fraction form
    902,403.96/1,245,317.49 = 499,995.96/x
  3. Step 3: Cross multiply
    902,403.96x = 1,245,317.49 × 499,995.96
  4. Step 4: Simplify right side
    902,403.96x = 622,653,713,917.34
  5. Step 5: Solve for x
    x = 622,653,713,917.34/902,403.96
  6. Step 6: Final answer
    x = 689,994.44

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.