Home / 751,293.46-1,036,782.93-407,138.90

Finding the Fourth Proportional to 751,293.46, 1,036,782.93 and 407,138.90

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Solution

The fourth proportional to 751,293.46, 1,036,782.93 and 407,138.90 is: 561,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,293.46 : 1,036,782.93 = 407,138.90 : x
  2. Step 2: Convert to fraction form
    751,293.46/1,036,782.93 = 407,138.90/x
  3. Step 3: Cross multiply
    751,293.46x = 1,036,782.93 × 407,138.90
  4. Step 4: Simplify right side
    751,293.46x = 422,114,661,658.98
  5. Step 5: Solve for x
    x = 422,114,661,658.98/751,293.46
  6. Step 6: Final answer
    x = 561,850.57

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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.