Home / 821,666.43-1,133,795.48-482,010.75

Finding the Fourth Proportional to 821,666.43, 1,133,795.48 and 482,010.75

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Solution

The fourth proportional to 821,666.43, 1,133,795.48 and 482,010.75 is: 665,113.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,666.43 : 1,133,795.48 = 482,010.75 : x
  2. Step 2: Convert to fraction form
    821,666.43/1,133,795.48 = 482,010.75/x
  3. Step 3: Cross multiply
    821,666.43x = 1,133,795.48 × 482,010.75
  4. Step 4: Simplify right side
    821,666.43x = 546,501,607,251.36
  5. Step 5: Solve for x
    x = 546,501,607,251.36/821,666.43
  6. Step 6: Final answer
    x = 665,113.71

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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.