Home / 492,829.20-739,243.80-427,875.30

Finding the Fourth Proportional to 492,829.20, 739,243.80 and 427,875.30

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Solution

The fourth proportional to 492,829.20, 739,243.80 and 427,875.30 is: 641,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,829.20 : 739,243.80 = 427,875.30 : x
  2. Step 2: Convert to fraction form
    492,829.20/739,243.80 = 427,875.30/x
  3. Step 3: Cross multiply
    492,829.20x = 739,243.80 × 427,875.30
  4. Step 4: Simplify right side
    492,829.20x = 316,304,162,698.14
  5. Step 5: Solve for x
    x = 316,304,162,698.14/492,829.20
  6. Step 6: Final answer
    x = 641,812.95

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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.