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Finding the Fourth Proportional to 559,935.80, 839,903.70 and 323,739.80

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Solution

The fourth proportional to 559,935.80, 839,903.70 and 323,739.80 is: 485,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,935.80 : 839,903.70 = 323,739.80 : x
  2. Step 2: Convert to fraction form
    559,935.80/839,903.70 = 323,739.80/x
  3. Step 3: Cross multiply
    559,935.80x = 839,903.70 × 323,739.80
  4. Step 4: Simplify right side
    559,935.80x = 271,910,255,857.26
  5. Step 5: Solve for x
    x = 271,910,255,857.26/559,935.80
  6. Step 6: Final answer
    x = 485,609.70

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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.