Home / 751,216.78-1,036,778.43-428,854.06

Finding the Fourth Proportional to 751,216.78, 1,036,778.43 and 428,854.06

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Solution

The fourth proportional to 751,216.78, 1,036,778.43 and 428,854.06 is: 591,875.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,216.78 : 1,036,778.43 = 428,854.06 : x
  2. Step 2: Convert to fraction form
    751,216.78/1,036,778.43 = 428,854.06/x
  3. Step 3: Cross multiply
    751,216.78x = 1,036,778.43 × 428,854.06
  4. Step 4: Simplify right side
    751,216.78x = 444,626,639,025.93
  5. Step 5: Solve for x
    x = 444,626,639,025.93/751,216.78
  6. Step 6: Final answer
    x = 591,875.28

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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.