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Finding the Fourth Proportional to 576,510.73, 864,807.56 and 221,524.64

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Solution

The fourth proportional to 576,510.73, 864,807.56 and 221,524.64 is: 332,302.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,510.73 : 864,807.56 = 221,524.64 : x
  2. Step 2: Convert to fraction form
    576,510.73/864,807.56 = 221,524.64/x
  3. Step 3: Cross multiply
    576,510.73x = 864,807.56 × 221,524.64
  4. Step 4: Simplify right side
    576,510.73x = 191,576,182,040.36
  5. Step 5: Solve for x
    x = 191,576,182,040.36/576,510.73
  6. Step 6: Final answer
    x = 332,302.89

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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.