Home / 494,743.20-742,114.80-317,596.20

Finding the Fourth Proportional to 494,743.20, 742,114.80 and 317,596.20

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Solution

The fourth proportional to 494,743.20, 742,114.80 and 317,596.20 is: 476,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,743.20 : 742,114.80 = 317,596.20 : x
  2. Step 2: Convert to fraction form
    494,743.20/742,114.80 = 317,596.20/x
  3. Step 3: Cross multiply
    494,743.20x = 742,114.80 × 317,596.20
  4. Step 4: Simplify right side
    494,743.20x = 235,692,840,443.76
  5. Step 5: Solve for x
    x = 235,692,840,443.76/494,743.20
  6. Step 6: Final answer
    x = 476,394.30

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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.