Home / 434,724.20-652,280.70-209,997.80

Finding the Fourth Proportional to 434,724.20, 652,280.70 and 209,997.80

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Solution

The fourth proportional to 434,724.20, 652,280.70 and 209,997.80 is: 315,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,724.20 : 652,280.70 = 209,997.80 : x
  2. Step 2: Convert to fraction form
    434,724.20/652,280.70 = 209,997.80/x
  3. Step 3: Cross multiply
    434,724.20x = 652,280.70 × 209,997.80
  4. Step 4: Simplify right side
    434,724.20x = 136,977,511,982.46
  5. Step 5: Solve for x
    x = 136,977,511,982.46/434,724.20
  6. Step 6: Final answer
    x = 315,090.61

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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.