Home / 447,220.80-670,442.40-269,539.20

Finding the Fourth Proportional to 447,220.80, 670,442.40 and 269,539.20

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Solution

The fourth proportional to 447,220.80, 670,442.40 and 269,539.20 is: 404,074.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,220.80 : 670,442.40 = 269,539.20 : x
  2. Step 2: Convert to fraction form
    447,220.80/670,442.40 = 269,539.20/x
  3. Step 3: Cross multiply
    447,220.80x = 670,442.40 × 269,539.20
  4. Step 4: Simplify right side
    447,220.80x = 180,710,508,142.08
  5. Step 5: Solve for x
    x = 180,710,508,142.08/447,220.80
  6. Step 6: Final answer
    x = 404,074.47

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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.