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Finding the Fourth Proportional to 619,879.20, 928,069.20 and 602,383.20

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Solution

The fourth proportional to 619,879.20, 928,069.20 and 602,383.20 is: 901,874.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,879.20 : 928,069.20 = 602,383.20 : x
  2. Step 2: Convert to fraction form
    619,879.20/928,069.20 = 602,383.20/x
  3. Step 3: Cross multiply
    619,879.20x = 928,069.20 × 602,383.20
  4. Step 4: Simplify right side
    619,879.20x = 559,053,294,517.44
  5. Step 5: Solve for x
    x = 559,053,294,517.44/619,879.20
  6. Step 6: Final answer
    x = 901,874.58

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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.