Home / 751,297.20-1,036,788.16-407,142.65

Finding the Fourth Proportional to 751,297.20, 1,036,788.16 and 407,142.65

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Solution

The fourth proportional to 751,297.20, 1,036,788.16 and 407,142.65 is: 561,855.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,297.20 : 1,036,788.16 = 407,142.65 : x
  2. Step 2: Convert to fraction form
    751,297.20/1,036,788.16 = 407,142.65/x
  3. Step 3: Cross multiply
    751,297.20x = 1,036,788.16 × 407,142.65
  4. Step 4: Simplify right side
    751,297.20x = 422,120,678,951.02
  5. Step 5: Solve for x
    x = 422,120,678,951.02/751,297.20
  6. Step 6: Final answer
    x = 561,855.79

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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.