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Finding the Fourth Proportional to 1,267,950.94, 1,749,951.72 and 784,671.74

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Solution

The fourth proportional to 1,267,950.94, 1,749,951.72 and 784,671.74 is: 1,082,958.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,950.94 : 1,749,951.72 = 784,671.74 : x
  2. Step 2: Convert to fraction form
    1,267,950.94/1,749,951.72 = 784,671.74/x
  3. Step 3: Cross multiply
    1,267,950.94x = 1,749,951.72 × 784,671.74
  4. Step 4: Simplify right side
    1,267,950.94x = 1,373,137,661,048.39
  5. Step 5: Solve for x
    x = 1,373,137,661,048.39/1,267,950.94
  6. Step 6: Final answer
    x = 1,082,958.04

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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.