Home / 765,200.83-1,055,985.96-438,507.37

Finding the Fourth Proportional to 765,200.83, 1,055,985.96 and 438,507.37

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Solution

The fourth proportional to 765,200.83, 1,055,985.96 and 438,507.37 is: 605,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,200.83 : 1,055,985.96 = 438,507.37 : x
  2. Step 2: Convert to fraction form
    765,200.83/1,055,985.96 = 438,507.37/x
  3. Step 3: Cross multiply
    765,200.83x = 1,055,985.96 × 438,507.37
  4. Step 4: Simplify right side
    765,200.83x = 463,057,626,076.53
  5. Step 5: Solve for x
    x = 463,057,626,076.53/765,200.83
  6. Step 6: Final answer
    x = 605,145.22

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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.