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Finding the Fourth Proportional to 648,401.20, 971,910.60 and 248,887.60

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Solution

The fourth proportional to 648,401.20, 971,910.60 and 248,887.60 is: 373,066.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,401.20 : 971,910.60 = 248,887.60 : x
  2. Step 2: Convert to fraction form
    648,401.20/971,910.60 = 248,887.60/x
  3. Step 3: Cross multiply
    648,401.20x = 971,910.60 × 248,887.60
  4. Step 4: Simplify right side
    648,401.20x = 241,896,496,648.56
  5. Step 5: Solve for x
    x = 241,896,496,648.56/648,401.20
  6. Step 6: Final answer
    x = 373,066.08

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1.5x scale

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.