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Finding the Fourth Proportional to 593,999.70, 890,999.55 and 328,279.20

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Solution

The fourth proportional to 593,999.70, 890,999.55 and 328,279.20 is: 492,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,999.70 : 890,999.55 = 328,279.20 : x
  2. Step 2: Convert to fraction form
    593,999.70/890,999.55 = 328,279.20/x
  3. Step 3: Cross multiply
    593,999.70x = 890,999.55 × 328,279.20
  4. Step 4: Simplify right side
    593,999.70x = 292,496,619,474.36
  5. Step 5: Solve for x
    x = 292,496,619,474.36/593,999.70
  6. Step 6: Final answer
    x = 492,418.80

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Similar ratio
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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.