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Finding the Fourth Proportional to 634,645.86, 875,796.06 and 348,163.44

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Solution

The fourth proportional to 634,645.86, 875,796.06 and 348,163.44 is: 480,457.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,645.86 : 875,796.06 = 348,163.44 : x
  2. Step 2: Convert to fraction form
    634,645.86/875,796.06 = 348,163.44/x
  3. Step 3: Cross multiply
    634,645.86x = 875,796.06 × 348,163.44
  4. Step 4: Simplify right side
    634,645.86x = 304,920,168,988.05
  5. Step 5: Solve for x
    x = 304,920,168,988.05/634,645.86
  6. Step 6: Final answer
    x = 480,457.19

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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.