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Finding the Fourth Proportional to 634,162.48, 875,120.94 and 347,676.28

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Solution

The fourth proportional to 634,162.48, 875,120.94 and 347,676.28 is: 479,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,162.48 : 875,120.94 = 347,676.28 : x
  2. Step 2: Convert to fraction form
    634,162.48/875,120.94 = 347,676.28/x
  3. Step 3: Cross multiply
    634,162.48x = 875,120.94 × 347,676.28
  4. Step 4: Simplify right side
    634,162.48x = 304,258,792,969.30
  5. Step 5: Solve for x
    x = 304,258,792,969.30/634,162.48
  6. Step 6: Final answer
    x = 479,780.50

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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.