Home / 751,137.72-1,036,004.63-521,695.31

Finding the Fourth Proportional to 751,137.72, 1,036,004.63 and 521,695.31

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Solution

The fourth proportional to 751,137.72, 1,036,004.63 and 521,695.31 is: 719,546.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,137.72 : 1,036,004.63 = 521,695.31 : x
  2. Step 2: Convert to fraction form
    751,137.72/1,036,004.63 = 521,695.31/x
  3. Step 3: Cross multiply
    751,137.72x = 1,036,004.63 × 521,695.31
  4. Step 4: Simplify right side
    751,137.72x = 540,478,748,820.79
  5. Step 5: Solve for x
    x = 540,478,748,820.79/751,137.72
  6. Step 6: Final answer
    x = 719,546.81

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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.