Home / 745,077.54-1,028,178.46-422,768.42

Finding the Fourth Proportional to 745,077.54, 1,028,178.46 and 422,768.42

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Solution

The fourth proportional to 745,077.54, 1,028,178.46 and 422,768.42 is: 583,404.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,077.54 : 1,028,178.46 = 422,768.42 : x
  2. Step 2: Convert to fraction form
    745,077.54/1,028,178.46 = 422,768.42/x
  3. Step 3: Cross multiply
    745,077.54x = 1,028,178.46 × 422,768.42
  4. Step 4: Simplify right side
    745,077.54x = 434,681,383,012.23
  5. Step 5: Solve for x
    x = 434,681,383,012.23/745,077.54
  6. Step 6: Final answer
    x = 583,404.22

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Double scale
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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.