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Finding the Fourth Proportional to 635,530.33, 876,665.74 and 380,733.90

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Solution

The fourth proportional to 635,530.33, 876,665.74 and 380,733.90 is: 525,193.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,530.33 : 876,665.74 = 380,733.90 : x
  2. Step 2: Convert to fraction form
    635,530.33/876,665.74 = 380,733.90/x
  3. Step 3: Cross multiply
    635,530.33x = 876,665.74 × 380,733.90
  4. Step 4: Simplify right side
    635,530.33x = 333,776,366,186.59
  5. Step 5: Solve for x
    x = 333,776,366,186.59/635,530.33
  6. Step 6: Final answer
    x = 525,193.45

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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.