Home / 829,067.80-1,243,601.70-630,002.20

Finding the Fourth Proportional to 829,067.80, 1,243,601.70 and 630,002.20

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Solution

The fourth proportional to 829,067.80, 1,243,601.70 and 630,002.20 is: 945,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,067.80 : 1,243,601.70 = 630,002.20 : x
  2. Step 2: Convert to fraction form
    829,067.80/1,243,601.70 = 630,002.20/x
  3. Step 3: Cross multiply
    829,067.80x = 1,243,601.70 × 630,002.20
  4. Step 4: Simplify right side
    829,067.80x = 783,471,806,923.74
  5. Step 5: Solve for x
    x = 783,471,806,923.74/829,067.80
  6. Step 6: Final answer
    x = 945,003.30

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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.