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Finding the Fourth Proportional to 540,150.39, 745,415.37 and 298,438.54

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Solution

The fourth proportional to 540,150.39, 745,415.37 and 298,438.54 is: 411,849.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,150.39 : 745,415.37 = 298,438.54 : x
  2. Step 2: Convert to fraction form
    540,150.39/745,415.37 = 298,438.54/x
  3. Step 3: Cross multiply
    540,150.39x = 745,415.37 × 298,438.54
  4. Step 4: Simplify right side
    540,150.39x = 222,460,672,852.82
  5. Step 5: Solve for x
    x = 222,460,672,852.82/540,150.39
  6. Step 6: Final answer
    x = 411,849.51

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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.