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Finding the Fourth Proportional to 554,576.71, 765,316.38 and 299,927.90

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Solution

The fourth proportional to 554,576.71, 765,316.38 and 299,927.90 is: 413,900.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,576.71 : 765,316.38 = 299,927.90 : x
  2. Step 2: Convert to fraction form
    554,576.71/765,316.38 = 299,927.90/x
  3. Step 3: Cross multiply
    554,576.71x = 765,316.38 × 299,927.90
  4. Step 4: Simplify right side
    554,576.71x = 229,539,734,520.92
  5. Step 5: Solve for x
    x = 229,539,734,520.92/554,576.71
  6. Step 6: Final answer
    x = 413,900.78

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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.