Home / 750,579.78-1,125,700.80-345,383.31

Finding the Fourth Proportional to 750,579.78, 1,125,700.80 and 345,383.31

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Solution

The fourth proportional to 750,579.78, 1,125,700.80 and 345,383.31 is: 517,997.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,579.78 : 1,125,700.80 = 345,383.31 : x
  2. Step 2: Convert to fraction form
    750,579.78/1,125,700.80 = 345,383.31/x
  3. Step 3: Cross multiply
    750,579.78x = 1,125,700.80 × 345,383.31
  4. Step 4: Simplify right side
    750,579.78x = 388,798,268,373.65
  5. Step 5: Solve for x
    x = 388,798,268,373.65/750,579.78
  6. Step 6: Final answer
    x = 517,997.26

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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.