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Finding the Fourth Proportional to 630,001.80, 945,002.70 and 330,366.60

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Solution

The fourth proportional to 630,001.80, 945,002.70 and 330,366.60 is: 495,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,001.80 : 945,002.70 = 330,366.60 : x
  2. Step 2: Convert to fraction form
    630,001.80/945,002.70 = 330,366.60/x
  3. Step 3: Cross multiply
    630,001.80x = 945,002.70 × 330,366.60
  4. Step 4: Simplify right side
    630,001.80x = 312,197,328,989.82
  5. Step 5: Solve for x
    x = 312,197,328,989.82/630,001.80
  6. Step 6: Final answer
    x = 495,549.90

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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.