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Finding the Fourth Proportional to 939,092, 1,408,845.36 and 348,116

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Solution

The fourth proportional to 939,092, 1,408,845.36 and 348,116 is: 522,250.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,092 : 1,408,845.36 = 348,116 : x
  2. Step 2: Convert to fraction form
    939,092/1,408,845.36 = 348,116/x
  3. Step 3: Cross multiply
    939,092x = 1,408,845.36 × 348,116
  4. Step 4: Simplify right side
    939,092x = 490,441,611,341.76
  5. Step 5: Solve for x
    x = 490,441,611,341.76/939,092
  6. Step 6: Final answer
    x = 522,250.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.