Home / 446,721.20-670,600.20-269,428.40

Finding the Fourth Proportional to 446,721.20, 670,600.20 and 269,428.40

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Solution

The fourth proportional to 446,721.20, 670,600.20 and 269,428.40 is: 404,455.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,721.20 : 670,600.20 = 269,428.40 : x
  2. Step 2: Convert to fraction form
    446,721.20/670,600.20 = 269,428.40/x
  3. Step 3: Cross multiply
    446,721.20x = 670,600.20 × 269,428.40
  4. Step 4: Simplify right side
    446,721.20x = 180,678,738,925.68
  5. Step 5: Solve for x
    x = 180,678,738,925.68/446,721.20
  6. Step 6: Final answer
    x = 404,455.26

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1.5x scale

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.