Home / 843,557.88-1,265,243.22-212,471.64

Finding the Fourth Proportional to 843,557.88, 1,265,243.22 and 212,471.64

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Solution

The fourth proportional to 843,557.88, 1,265,243.22 and 212,471.64 is: 318,683.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,557.88 : 1,265,243.22 = 212,471.64 : x
  2. Step 2: Convert to fraction form
    843,557.88/1,265,243.22 = 212,471.64/x
  3. Step 3: Cross multiply
    843,557.88x = 1,265,243.22 × 212,471.64
  4. Step 4: Simplify right side
    843,557.88x = 268,828,301,952.28
  5. Step 5: Solve for x
    x = 268,828,301,952.28/843,557.88
  6. Step 6: Final answer
    x = 318,683.88

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Double scale
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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.