Home / 751,217.45-1,036,641.51-428,864.58

Finding the Fourth Proportional to 751,217.45, 1,036,641.51 and 428,864.58

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Solution

The fourth proportional to 751,217.45, 1,036,641.51 and 428,864.58 is: 591,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,217.45 : 1,036,641.51 = 428,864.58 : x
  2. Step 2: Convert to fraction form
    751,217.45/1,036,641.51 = 428,864.58/x
  3. Step 3: Cross multiply
    751,217.45x = 1,036,641.51 × 428,864.58
  4. Step 4: Simplify right side
    751,217.45x = 444,578,825,796.72
  5. Step 5: Solve for x
    x = 444,578,825,796.72/751,217.45
  6. Step 6: Final answer
    x = 591,811.10

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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.