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Finding the Fourth Proportional to 635,317.82, 876,767.19 and 380,663.54

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Solution

The fourth proportional to 635,317.82, 876,767.19 and 380,663.54 is: 525,332.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,317.82 : 876,767.19 = 380,663.54 : x
  2. Step 2: Convert to fraction form
    635,317.82/876,767.19 = 380,663.54/x
  3. Step 3: Cross multiply
    635,317.82x = 876,767.19 × 380,663.54
  4. Step 4: Simplify right side
    635,317.82x = 333,753,302,301.25
  5. Step 5: Solve for x
    x = 333,753,302,301.25/635,317.82
  6. Step 6: Final answer
    x = 525,332.82

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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.