Home / 780,183.48-1,076,640.48-436,024.20

Finding the Fourth Proportional to 780,183.48, 1,076,640.48 and 436,024.20

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Solution

The fourth proportional to 780,183.48, 1,076,640.48 and 436,024.20 is: 601,706.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,183.48 : 1,076,640.48 = 436,024.20 : x
  2. Step 2: Convert to fraction form
    780,183.48/1,076,640.48 = 436,024.20/x
  3. Step 3: Cross multiply
    780,183.48x = 1,076,640.48 × 436,024.20
  4. Step 4: Simplify right side
    780,183.48x = 469,441,303,979.62
  5. Step 5: Solve for x
    x = 469,441,303,979.62/780,183.48
  6. Step 6: Final answer
    x = 601,706.29

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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.