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Finding the Fourth Proportional to 382,530.60, 576,660.87 and 356,840.64

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Solution

The fourth proportional to 382,530.60, 576,660.87 and 356,840.64 is: 537,933.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,530.60 : 576,660.87 = 356,840.64 : x
  2. Step 2: Convert to fraction form
    382,530.60/576,660.87 = 356,840.64/x
  3. Step 3: Cross multiply
    382,530.60x = 576,660.87 × 356,840.64
  4. Step 4: Simplify right side
    382,530.60x = 205,776,033,913.76
  5. Step 5: Solve for x
    x = 205,776,033,913.76/382,530.60
  6. Step 6: Final answer
    x = 537,933.52

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.