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Finding the Fourth Proportional to 577,896.63, 867,016.67 and 278,290.59

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Solution

The fourth proportional to 577,896.63, 867,016.67 and 278,290.59 is: 417,518.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,896.63 : 867,016.67 = 278,290.59 : x
  2. Step 2: Convert to fraction form
    577,896.63/867,016.67 = 278,290.59/x
  3. Step 3: Cross multiply
    577,896.63x = 867,016.67 × 278,290.59
  4. Step 4: Simplify right side
    577,896.63x = 241,282,580,634.14
  5. Step 5: Solve for x
    x = 241,282,580,634.14/577,896.63
  6. Step 6: Final answer
    x = 417,518.58

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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.