Home / 751,287.58-1,036,774.42-407,124.86

Finding the Fourth Proportional to 751,287.58, 1,036,774.42 and 407,124.86

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Solution

The fourth proportional to 751,287.58, 1,036,774.42 and 407,124.86 is: 561,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,287.58 : 1,036,774.42 = 407,124.86 : x
  2. Step 2: Convert to fraction form
    751,287.58/1,036,774.42 = 407,124.86/x
  3. Step 3: Cross multiply
    751,287.58x = 1,036,774.42 × 407,124.86
  4. Step 4: Simplify right side
    751,287.58x = 422,096,634,392.40
  5. Step 5: Solve for x
    x = 422,096,634,392.40/751,287.58
  6. Step 6: Final answer
    x = 561,830.98

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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.