Home / 407,220.48-562,640.40-321,834.24

Finding the Fourth Proportional to 407,220.48, 562,640.40 and 321,834.24

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Solution

The fourth proportional to 407,220.48, 562,640.40 and 321,834.24 is: 444,665.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,220.48 : 562,640.40 = 321,834.24 : x
  2. Step 2: Convert to fraction form
    407,220.48/562,640.40 = 321,834.24/x
  3. Step 3: Cross multiply
    407,220.48x = 562,640.40 × 321,834.24
  4. Step 4: Simplify right side
    407,220.48x = 181,076,945,527.30
  5. Step 5: Solve for x
    x = 181,076,945,527.30/407,220.48
  6. Step 6: Final answer
    x = 444,665.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.