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Finding the Fourth Proportional to 554,496.94, 765,216.84 and 312,732.10

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Solution

The fourth proportional to 554,496.94, 765,216.84 and 312,732.10 is: 431,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,496.94 : 765,216.84 = 312,732.10 : x
  2. Step 2: Convert to fraction form
    554,496.94/765,216.84 = 312,732.10/x
  3. Step 3: Cross multiply
    554,496.94x = 765,216.84 × 312,732.10
  4. Step 4: Simplify right side
    554,496.94x = 239,307,869,328.56
  5. Step 5: Solve for x
    x = 239,307,869,328.56/554,496.94
  6. Step 6: Final answer
    x = 431,576.54

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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.