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Finding the Fourth Proportional to 610,790.65, 842,992.28 and 338,945.87

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Solution

The fourth proportional to 610,790.65, 842,992.28 and 338,945.87 is: 467,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,790.65 : 842,992.28 = 338,945.87 : x
  2. Step 2: Convert to fraction form
    610,790.65/842,992.28 = 338,945.87/x
  3. Step 3: Cross multiply
    610,790.65x = 842,992.28 × 338,945.87
  4. Step 4: Simplify right side
    610,790.65x = 285,728,751,541.51
  5. Step 5: Solve for x
    x = 285,728,751,541.51/610,790.65
  6. Step 6: Final answer
    x = 467,801.45

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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.