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Finding the Fourth Proportional to 613,739, 920,620.02 and 170,518.52

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Solution

The fourth proportional to 613,739, 920,620.02 and 170,518.52 is: 255,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,739 : 920,620.02 = 170,518.52 : x
  2. Step 2: Convert to fraction form
    613,739/920,620.02 = 170,518.52/x
  3. Step 3: Cross multiply
    613,739x = 920,620.02 × 170,518.52
  4. Step 4: Simplify right side
    613,739x = 156,982,763,292.77
  5. Step 5: Solve for x
    x = 156,982,763,292.77/613,739
  6. Step 6: Final answer
    x = 255,780.98

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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.