Home / 495,107.20-742,660.80-327,145.60

Finding the Fourth Proportional to 495,107.20, 742,660.80 and 327,145.60

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Solution

The fourth proportional to 495,107.20, 742,660.80 and 327,145.60 is: 490,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,107.20 : 742,660.80 = 327,145.60 : x
  2. Step 2: Convert to fraction form
    495,107.20/742,660.80 = 327,145.60/x
  3. Step 3: Cross multiply
    495,107.20x = 742,660.80 × 327,145.60
  4. Step 4: Simplify right side
    495,107.20x = 242,958,213,012.48
  5. Step 5: Solve for x
    x = 242,958,213,012.48/495,107.20
  6. Step 6: Final answer
    x = 490,718.40

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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.