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Finding the Fourth Proportional to 630,010.80, 945,016.20 and 452,863.80

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Solution

The fourth proportional to 630,010.80, 945,016.20 and 452,863.80 is: 679,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,010.80 : 945,016.20 = 452,863.80 : x
  2. Step 2: Convert to fraction form
    630,010.80/945,016.20 = 452,863.80/x
  3. Step 3: Cross multiply
    630,010.80x = 945,016.20 × 452,863.80
  4. Step 4: Simplify right side
    630,010.80x = 427,963,627,393.56
  5. Step 5: Solve for x
    x = 427,963,627,393.56/630,010.80
  6. Step 6: Final answer
    x = 679,295.70

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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.