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Finding the Fourth Proportional to 648,247.30, 894,630.85 and 357,914.85

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Solution

The fourth proportional to 648,247.30, 894,630.85 and 357,914.85 is: 493,949.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,247.30 : 894,630.85 = 357,914.85 : x
  2. Step 2: Convert to fraction form
    648,247.30/894,630.85 = 357,914.85/x
  3. Step 3: Cross multiply
    648,247.30x = 894,630.85 × 357,914.85
  4. Step 4: Simplify right side
    648,247.30x = 320,201,668,272.40
  5. Step 5: Solve for x
    x = 320,201,668,272.40/648,247.30
  6. Step 6: Final answer
    x = 493,949.87

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1.5x scale

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.