Home / 751,189.32-1,036,639.56-407,034.64

Finding the Fourth Proportional to 751,189.32, 1,036,639.56 and 407,034.64

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Solution

The fourth proportional to 751,189.32, 1,036,639.56 and 407,034.64 is: 561,706.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,189.32 : 1,036,639.56 = 407,034.64 : x
  2. Step 2: Convert to fraction form
    751,189.32/1,036,639.56 = 407,034.64/x
  3. Step 3: Cross multiply
    751,189.32x = 1,036,639.56 × 407,034.64
  4. Step 4: Simplify right side
    751,189.32x = 421,948,210,114.36
  5. Step 5: Solve for x
    x = 421,948,210,114.36/751,189.32
  6. Step 6: Final answer
    x = 561,706.88

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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.