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Finding the Fourth Proportional to 610,315.80, 915,732.90 and 294,610.20

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Solution

The fourth proportional to 610,315.80, 915,732.90 and 294,610.20 is: 442,040.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,315.80 : 915,732.90 = 294,610.20 : x
  2. Step 2: Convert to fraction form
    610,315.80/915,732.90 = 294,610.20/x
  3. Step 3: Cross multiply
    610,315.80x = 915,732.90 × 294,610.20
  4. Step 4: Simplify right side
    610,315.80x = 269,784,252,815.58
  5. Step 5: Solve for x
    x = 269,784,252,815.58/610,315.80
  6. Step 6: Final answer
    x = 442,040.42

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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.