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Finding the Fourth Proportional to 550,236.98, 759,256.88 and 320,736.84

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Solution

The fourth proportional to 550,236.98, 759,256.88 and 320,736.84 is: 442,575.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,236.98 : 759,256.88 = 320,736.84 : x
  2. Step 2: Convert to fraction form
    550,236.98/759,256.88 = 320,736.84/x
  3. Step 3: Cross multiply
    550,236.98x = 759,256.88 × 320,736.84
  4. Step 4: Simplify right side
    550,236.98x = 243,521,650,835.78
  5. Step 5: Solve for x
    x = 243,521,650,835.78/550,236.98
  6. Step 6: Final answer
    x = 442,575.95

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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.