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Finding the Fourth Proportional to 634,623, 875,805.66 and 366,351

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Solution

The fourth proportional to 634,623, 875,805.66 and 366,351 is: 505,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,623 : 875,805.66 = 366,351 : x
  2. Step 2: Convert to fraction form
    634,623/875,805.66 = 366,351/x
  3. Step 3: Cross multiply
    634,623x = 875,805.66 × 366,351
  4. Step 4: Simplify right side
    634,623x = 320,852,279,346.66
  5. Step 5: Solve for x
    x = 320,852,279,346.66/634,623
  6. Step 6: Final answer
    x = 505,579.34

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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.