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Finding the Fourth Proportional to 634,906.76, 876,181.86 and 348,453.50

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Solution

The fourth proportional to 634,906.76, 876,181.86 and 348,453.50 is: 480,871.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,906.76 : 876,181.86 = 348,453.50 : x
  2. Step 2: Convert to fraction form
    634,906.76/876,181.86 = 348,453.50/x
  3. Step 3: Cross multiply
    634,906.76x = 876,181.86 × 348,453.50
  4. Step 4: Simplify right side
    634,906.76x = 305,308,631,372.60
  5. Step 5: Solve for x
    x = 305,308,631,372.60/634,906.76
  6. Step 6: Final answer
    x = 480,871.61

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1.5x scale

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.