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Finding the Fourth Proportional to 519,596.48, 779,424.96 and 145,648.64

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Solution

The fourth proportional to 519,596.48, 779,424.96 and 145,648.64 is: 218,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,596.48 : 779,424.96 = 145,648.64 : x
  2. Step 2: Convert to fraction form
    519,596.48/779,424.96 = 145,648.64/x
  3. Step 3: Cross multiply
    519,596.48x = 779,424.96 × 145,648.64
  4. Step 4: Simplify right side
    519,596.48x = 113,522,185,406.05
  5. Step 5: Solve for x
    x = 113,522,185,406.05/519,596.48
  6. Step 6: Final answer
    x = 218,481.44

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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.