Home / 1,115,150.96-1,538,984.48-631,720.08

Finding the Fourth Proportional to 1,115,150.96, 1,538,984.48 and 631,720.08

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Solution

The fourth proportional to 1,115,150.96, 1,538,984.48 and 631,720.08 is: 871,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,150.96 : 1,538,984.48 = 631,720.08 : x
  2. Step 2: Convert to fraction form
    1,115,150.96/1,538,984.48 = 631,720.08/x
  3. Step 3: Cross multiply
    1,115,150.96x = 1,538,984.48 × 631,720.08
  4. Step 4: Simplify right side
    1,115,150.96x = 972,207,395,665.76
  5. Step 5: Solve for x
    x = 972,207,395,665.76/1,115,150.96
  6. Step 6: Final answer
    x = 871,816.85

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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.