Home / 843,703.83-1,265,555.78-212,617.64

Finding the Fourth Proportional to 843,703.83, 1,265,555.78 and 212,617.64

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Solution

The fourth proportional to 843,703.83, 1,265,555.78 and 212,617.64 is: 318,926.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,703.83 : 1,265,555.78 = 212,617.64 : x
  2. Step 2: Convert to fraction form
    843,703.83/1,265,555.78 = 212,617.64/x
  3. Step 3: Cross multiply
    843,703.83x = 1,265,555.78 × 212,617.64
  4. Step 4: Simplify right side
    843,703.83x = 269,079,475,841.09
  5. Step 5: Solve for x
    x = 269,079,475,841.09/843,703.83
  6. Step 6: Final answer
    x = 318,926.46

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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.