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Finding the Fourth Proportional to 969,866.94, 1,338,457.86 and 540,147

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Solution

The fourth proportional to 969,866.94, 1,338,457.86 and 540,147 is: 745,425.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,866.94 : 1,338,457.86 = 540,147 : x
  2. Step 2: Convert to fraction form
    969,866.94/1,338,457.86 = 540,147/x
  3. Step 3: Cross multiply
    969,866.94x = 1,338,457.86 × 540,147
  4. Step 4: Simplify right side
    969,866.94x = 722,963,997,705.42
  5. Step 5: Solve for x
    x = 722,963,997,705.42/969,866.94
  6. Step 6: Final answer
    x = 745,425.96

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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.