Home / 728,115.47-1,004,804.01-405,846.00

Finding the Fourth Proportional to 728,115.47, 1,004,804.01 and 405,846.00

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Solution

The fourth proportional to 728,115.47, 1,004,804.01 and 405,846.00 is: 560,070.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,115.47 : 1,004,804.01 = 405,846.00 : x
  2. Step 2: Convert to fraction form
    728,115.47/1,004,804.01 = 405,846.00/x
  3. Step 3: Cross multiply
    728,115.47x = 1,004,804.01 × 405,846.00
  4. Step 4: Simplify right side
    728,115.47x = 407,795,681,189.21
  5. Step 5: Solve for x
    x = 407,795,681,189.21/728,115.47
  6. Step 6: Final answer
    x = 560,070.07

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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.