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Finding the Fourth Proportional to 577,630.64, 866,448.40 and 379,206.56

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Solution

The fourth proportional to 577,630.64, 866,448.40 and 379,206.56 is: 568,811.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,630.64 : 866,448.40 = 379,206.56 : x
  2. Step 2: Convert to fraction form
    577,630.64/866,448.40 = 379,206.56/x
  3. Step 3: Cross multiply
    577,630.64x = 866,448.40 × 379,206.56
  4. Step 4: Simplify right side
    577,630.64x = 328,562,917,181.50
  5. Step 5: Solve for x
    x = 328,562,917,181.50/577,630.64
  6. Step 6: Final answer
    x = 568,811.44

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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.