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Finding the Fourth Proportional to 648,045.70, 970,756.35 and 367,234.90

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Solution

The fourth proportional to 648,045.70, 970,756.35 and 367,234.90 is: 550,108.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,045.70 : 970,756.35 = 367,234.90 : x
  2. Step 2: Convert to fraction form
    648,045.70/970,756.35 = 367,234.90/x
  3. Step 3: Cross multiply
    648,045.70x = 970,756.35 × 367,234.90
  4. Step 4: Simplify right side
    648,045.70x = 356,495,611,116.62
  5. Step 5: Solve for x
    x = 356,495,611,116.62/648,045.70
  6. Step 6: Final answer
    x = 550,108.75

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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.