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Finding the Fourth Proportional to 634,767.53, 875,995.31 and 348,287.54

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Solution

The fourth proportional to 634,767.53, 875,995.31 and 348,287.54 is: 480,645.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,767.53 : 875,995.31 = 348,287.54 : x
  2. Step 2: Convert to fraction form
    634,767.53/875,995.31 = 348,287.54/x
  3. Step 3: Cross multiply
    634,767.53x = 875,995.31 × 348,287.54
  4. Step 4: Simplify right side
    634,767.53x = 305,098,251,571.44
  5. Step 5: Solve for x
    x = 305,098,251,571.44/634,767.53
  6. Step 6: Final answer
    x = 480,645.65

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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.