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Finding the Fourth Proportional to 540,327.81, 745,646.26 and 298,610.32

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Solution

The fourth proportional to 540,327.81, 745,646.26 and 298,610.32 is: 412,078.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,327.81 : 745,646.26 = 298,610.32 : x
  2. Step 2: Convert to fraction form
    540,327.81/745,646.26 = 298,610.32/x
  3. Step 3: Cross multiply
    540,327.81x = 745,646.26 × 298,610.32
  4. Step 4: Simplify right side
    540,327.81x = 222,657,669,749.87
  5. Step 5: Solve for x
    x = 222,657,669,749.87/540,327.81
  6. Step 6: Final answer
    x = 412,078.86

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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.