Home / 745,410.39-1,028,661.98-405,877.83

Finding the Fourth Proportional to 745,410.39, 1,028,661.98 and 405,877.83

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Solution

The fourth proportional to 745,410.39, 1,028,661.98 and 405,877.83 is: 560,109.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,410.39 : 1,028,661.98 = 405,877.83 : x
  2. Step 2: Convert to fraction form
    745,410.39/1,028,661.98 = 405,877.83/x
  3. Step 3: Cross multiply
    745,410.39x = 1,028,661.98 × 405,877.83
  4. Step 4: Simplify right side
    745,410.39x = 417,511,090,216.51
  5. Step 5: Solve for x
    x = 417,511,090,216.51/745,410.39
  6. Step 6: Final answer
    x = 560,109.03

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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.