Home / 823,801.20-1,235,701.80-507,231.60

Finding the Fourth Proportional to 823,801.20, 1,235,701.80 and 507,231.60

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Solution

The fourth proportional to 823,801.20, 1,235,701.80 and 507,231.60 is: 760,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,801.20 : 1,235,701.80 = 507,231.60 : x
  2. Step 2: Convert to fraction form
    823,801.20/1,235,701.80 = 507,231.60/x
  3. Step 3: Cross multiply
    823,801.20x = 1,235,701.80 × 507,231.60
  4. Step 4: Simplify right side
    823,801.20x = 626,787,001,136.88
  5. Step 5: Solve for x
    x = 626,787,001,136.88/823,801.20
  6. Step 6: Final answer
    x = 760,847.40

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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.