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Finding the Fourth Proportional to 540,424.73, 745,789.10 and 295,409.86

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Solution

The fourth proportional to 540,424.73, 745,789.10 and 295,409.86 is: 407,667.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,424.73 : 745,789.10 = 295,409.86 : x
  2. Step 2: Convert to fraction form
    540,424.73/745,789.10 = 295,409.86/x
  3. Step 3: Cross multiply
    540,424.73x = 745,789.10 × 295,409.86
  4. Step 4: Simplify right side
    540,424.73x = 220,313,453,620.53
  5. Step 5: Solve for x
    x = 220,313,453,620.53/540,424.73
  6. Step 6: Final answer
    x = 407,667.23

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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.