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Finding the Fourth Proportional to 969,873.94, 1,338,467.52 and 540,154

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Solution

The fourth proportional to 969,873.94, 1,338,467.52 and 540,154 is: 745,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,873.94 : 1,338,467.52 = 540,154 : x
  2. Step 2: Convert to fraction form
    969,873.94/1,338,467.52 = 540,154/x
  3. Step 3: Cross multiply
    969,873.94x = 1,338,467.52 × 540,154
  4. Step 4: Simplify right side
    969,873.94x = 722,978,584,798.08
  5. Step 5: Solve for x
    x = 722,978,584,798.08/969,873.94
  6. Step 6: Final answer
    x = 745,435.62

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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.