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Finding the Fourth Proportional to 495,529.30, 743,293.95 and 408,049.30

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Solution

The fourth proportional to 495,529.30, 743,293.95 and 408,049.30 is: 612,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,529.30 : 743,293.95 = 408,049.30 : x
  2. Step 2: Convert to fraction form
    495,529.30/743,293.95 = 408,049.30/x
  3. Step 3: Cross multiply
    495,529.30x = 743,293.95 × 408,049.30
  4. Step 4: Simplify right side
    495,529.30x = 303,300,575,991.74
  5. Step 5: Solve for x
    x = 303,300,575,991.74/495,529.30
  6. Step 6: Final answer
    x = 612,073.95

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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.