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Finding the Fourth Proportional to 554,331.88, 764,977.80 and 299,683

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Solution

The fourth proportional to 554,331.88, 764,977.80 and 299,683 is: 413,562.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,331.88 : 764,977.80 = 299,683 : x
  2. Step 2: Convert to fraction form
    554,331.88/764,977.80 = 299,683/x
  3. Step 3: Cross multiply
    554,331.88x = 764,977.80 × 299,683
  4. Step 4: Simplify right side
    554,331.88x = 229,250,842,037.40
  5. Step 5: Solve for x
    x = 229,250,842,037.40/554,331.88
  6. Step 6: Final answer
    x = 413,562.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.