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Finding the Fourth Proportional to 634,142.37, 875,116.26 and 347,656.32

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Solution

The fourth proportional to 634,142.37, 875,116.26 and 347,656.32 is: 479,765.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,142.37 : 875,116.26 = 347,656.32 : x
  2. Step 2: Convert to fraction form
    634,142.37/875,116.26 = 347,656.32/x
  3. Step 3: Cross multiply
    634,142.37x = 875,116.26 × 347,656.32
  4. Step 4: Simplify right side
    634,142.37x = 304,239,698,523.76
  5. Step 5: Solve for x
    x = 304,239,698,523.76/634,142.37
  6. Step 6: Final answer
    x = 479,765.61

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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.