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Finding the Fourth Proportional to 634,814.41, 876,009.09 and 348,311.98

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Solution

The fourth proportional to 634,814.41, 876,009.09 and 348,311.98 is: 480,651.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,814.41 : 876,009.09 = 348,311.98 : x
  2. Step 2: Convert to fraction form
    634,814.41/876,009.09 = 348,311.98/x
  3. Step 3: Cross multiply
    634,814.41x = 876,009.09 × 348,311.98
  4. Step 4: Simplify right side
    634,814.41x = 305,124,460,635.90
  5. Step 5: Solve for x
    x = 305,124,460,635.90/634,814.41
  6. Step 6: Final answer
    x = 480,651.44

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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.