Home / 957,255.04-1,321,012.26-521,672.56

Finding the Fourth Proportional to 957,255.04, 1,321,012.26 and 521,672.56

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Solution

The fourth proportional to 957,255.04, 1,321,012.26 and 521,672.56 is: 719,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,255.04 : 1,321,012.26 = 521,672.56 : x
  2. Step 2: Convert to fraction form
    957,255.04/1,321,012.26 = 521,672.56/x
  3. Step 3: Cross multiply
    957,255.04x = 1,321,012.26 × 521,672.56
  4. Step 4: Simplify right side
    957,255.04x = 689,135,847,465.59
  5. Step 5: Solve for x
    x = 689,135,847,465.59/957,255.04
  6. Step 6: Final answer
    x = 719,908.30

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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.