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Finding the Fourth Proportional to 540,495.96, 745,873.44 and 298,788.72

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Solution

The fourth proportional to 540,495.96, 745,873.44 and 298,788.72 is: 412,322.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,495.96 : 745,873.44 = 298,788.72 : x
  2. Step 2: Convert to fraction form
    540,495.96/745,873.44 = 298,788.72/x
  3. Step 3: Cross multiply
    540,495.96x = 745,873.44 × 298,788.72
  4. Step 4: Simplify right side
    540,495.96x = 222,858,570,419.60
  5. Step 5: Solve for x
    x = 222,858,570,419.60/540,495.96
  6. Step 6: Final answer
    x = 412,322.36

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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.