Home / 751,204.20-1,036,662.70-407,039.88

Finding the Fourth Proportional to 751,204.20, 1,036,662.70 and 407,039.88

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Solution

The fourth proportional to 751,204.20, 1,036,662.70 and 407,039.88 is: 561,715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,204.20 : 1,036,662.70 = 407,039.88 : x
  2. Step 2: Convert to fraction form
    751,204.20/1,036,662.70 = 407,039.88/x
  3. Step 3: Cross multiply
    751,204.20x = 1,036,662.70 × 407,039.88
  4. Step 4: Simplify right side
    751,204.20x = 421,963,061,008.48
  5. Step 5: Solve for x
    x = 421,963,061,008.48/751,204.20
  6. Step 6: Final answer
    x = 561,715.52

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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.