Home / 745,452.42-1,028,454.19-422,975.76

Finding the Fourth Proportional to 745,452.42, 1,028,454.19 and 422,975.76

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Solution

The fourth proportional to 745,452.42, 1,028,454.19 and 422,975.76 is: 583,553.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,452.42 : 1,028,454.19 = 422,975.76 : x
  2. Step 2: Convert to fraction form
    745,452.42/1,028,454.19 = 422,975.76/x
  3. Step 3: Cross multiply
    745,452.42x = 1,028,454.19 × 422,975.76
  4. Step 4: Simplify right side
    745,452.42x = 435,011,192,640.43
  5. Step 5: Solve for x
    x = 435,011,192,640.43/745,452.42
  6. Step 6: Final answer
    x = 583,553.26

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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.