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Finding the Fourth Proportional to 493,235.40, 739,051.20 and 445,996.20

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Solution

The fourth proportional to 493,235.40, 739,051.20 and 445,996.20 is: 668,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,235.40 : 739,051.20 = 445,996.20 : x
  2. Step 2: Convert to fraction form
    493,235.40/739,051.20 = 445,996.20/x
  3. Step 3: Cross multiply
    493,235.40x = 739,051.20 × 445,996.20
  4. Step 4: Simplify right side
    493,235.40x = 329,614,026,805.44
  5. Step 5: Solve for x
    x = 329,614,026,805.44/493,235.40
  6. Step 6: Final answer
    x = 668,269.20

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Double scale
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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.