Home / 400,645.24-552,869.40-219,322.43

Finding the Fourth Proportional to 400,645.24, 552,869.40 and 219,322.43

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Solution

The fourth proportional to 400,645.24, 552,869.40 and 219,322.43 is: 302,653.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,645.24 : 552,869.40 = 219,322.43 : x
  2. Step 2: Convert to fraction form
    400,645.24/552,869.40 = 219,322.43/x
  3. Step 3: Cross multiply
    400,645.24x = 552,869.40 × 219,322.43
  4. Step 4: Simplify right side
    400,645.24x = 121,256,660,280.64
  5. Step 5: Solve for x
    x = 121,256,660,280.64/400,645.24
  6. Step 6: Final answer
    x = 302,653.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.