Home / 751,403.40-1,127,474.72-351,975.12

Finding the Fourth Proportional to 751,403.40, 1,127,474.72 and 351,975.12

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Solution

The fourth proportional to 751,403.40, 1,127,474.72 and 351,975.12 is: 528,135.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,403.40 : 1,127,474.72 = 351,975.12 : x
  2. Step 2: Convert to fraction form
    751,403.40/1,127,474.72 = 351,975.12/x
  3. Step 3: Cross multiply
    751,403.40x = 1,127,474.72 × 351,975.12
  4. Step 4: Simplify right side
    751,403.40x = 396,843,047,180.83
  5. Step 5: Solve for x
    x = 396,843,047,180.83/751,403.40
  6. Step 6: Final answer
    x = 528,135.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.