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Finding the Fourth Proportional to 385,533, 577,612.62 and 328,797.50

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Solution

The fourth proportional to 385,533, 577,612.62 and 328,797.50 is: 492,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,533 : 577,612.62 = 328,797.50 : x
  2. Step 2: Convert to fraction form
    385,533/577,612.62 = 328,797.50/x
  3. Step 3: Cross multiply
    385,533x = 577,612.62 × 328,797.50
  4. Step 4: Simplify right side
    385,533x = 189,917,582,536.39
  5. Step 5: Solve for x
    x = 189,917,582,536.39/385,533
  6. Step 6: Final answer
    x = 492,610.44

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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.