Home / 780,080.56-1,076,168.28-457,627.12

Finding the Fourth Proportional to 780,080.56, 1,076,168.28 and 457,627.12

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Solution

The fourth proportional to 780,080.56, 1,076,168.28 and 457,627.12 is: 631,324.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,080.56 : 1,076,168.28 = 457,627.12 : x
  2. Step 2: Convert to fraction form
    780,080.56/1,076,168.28 = 457,627.12/x
  3. Step 3: Cross multiply
    780,080.56x = 1,076,168.28 × 457,627.12
  4. Step 4: Simplify right side
    780,080.56x = 492,483,790,611.75
  5. Step 5: Solve for x
    x = 492,483,790,611.75/780,080.56
  6. Step 6: Final answer
    x = 631,324.27

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Double scale
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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.