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Finding the Fourth Proportional to 648,045.20, 970,755.60 and 367,234.40

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Solution

The fourth proportional to 648,045.20, 970,755.60 and 367,234.40 is: 550,108.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,045.20 : 970,755.60 = 367,234.40 : x
  2. Step 2: Convert to fraction form
    648,045.20/970,755.60 = 367,234.40/x
  3. Step 3: Cross multiply
    648,045.20x = 970,755.60 × 367,234.40
  4. Step 4: Simplify right side
    648,045.20x = 356,494,850,312.64
  5. Step 5: Solve for x
    x = 356,494,850,312.64/648,045.20
  6. Step 6: Final answer
    x = 550,108.00

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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.