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Finding the Fourth Proportional to 540,181.89, 745,447.95 and 298,464.51

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Solution

The fourth proportional to 540,181.89, 745,447.95 and 298,464.51 is: 411,879.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,181.89 : 745,447.95 = 298,464.51 : x
  2. Step 2: Convert to fraction form
    540,181.89/745,447.95 = 298,464.51/x
  3. Step 3: Cross multiply
    540,181.89x = 745,447.95 × 298,464.51
  4. Step 4: Simplify right side
    540,181.89x = 222,489,757,127.26
  5. Step 5: Solve for x
    x = 222,489,757,127.26/540,181.89
  6. Step 6: Final answer
    x = 411,879.33

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1.5x scale

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.