Home / 872,456.41-1,203,991.73-490,486.33

Finding the Fourth Proportional to 872,456.41, 1,203,991.73 and 490,486.33

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Solution

The fourth proportional to 872,456.41, 1,203,991.73 and 490,486.33 is: 676,872.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,456.41 : 1,203,991.73 = 490,486.33 : x
  2. Step 2: Convert to fraction form
    872,456.41/1,203,991.73 = 490,486.33/x
  3. Step 3: Cross multiply
    872,456.41x = 1,203,991.73 × 490,486.33
  4. Step 4: Simplify right side
    872,456.41x = 590,541,484,998.05
  5. Step 5: Solve for x
    x = 590,541,484,998.05/872,456.41
  6. Step 6: Final answer
    x = 676,872.19

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Double scale
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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.