Home / 492,283.20-738,386.40-192,705.60

Finding the Fourth Proportional to 492,283.20, 738,386.40 and 192,705.60

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Solution

The fourth proportional to 492,283.20, 738,386.40 and 192,705.60 is: 289,043.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,283.20 : 738,386.40 = 192,705.60 : x
  2. Step 2: Convert to fraction form
    492,283.20/738,386.40 = 192,705.60/x
  3. Step 3: Cross multiply
    492,283.20x = 738,386.40 × 192,705.60
  4. Step 4: Simplify right side
    492,283.20x = 142,291,194,243.84
  5. Step 5: Solve for x
    x = 142,291,194,243.84/492,283.20
  6. Step 6: Final answer
    x = 289,043.37

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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.