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Finding the Fourth Proportional to 634,910.99, 876,149.61 and 348,435.86

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Solution

The fourth proportional to 634,910.99, 876,149.61 and 348,435.86 is: 480,826.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,910.99 : 876,149.61 = 348,435.86 : x
  2. Step 2: Convert to fraction form
    634,910.99/876,149.61 = 348,435.86/x
  3. Step 3: Cross multiply
    634,910.99x = 876,149.61 × 348,435.86
  4. Step 4: Simplify right side
    634,910.99x = 305,281,942,849.02
  5. Step 5: Solve for x
    x = 305,281,942,849.02/634,910.99
  6. Step 6: Final answer
    x = 480,826.36

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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.