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Finding the Fourth Proportional to 1,373,719.84, 1,895,849.85 and 762,069.70

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Solution

The fourth proportional to 1,373,719.84, 1,895,849.85 and 762,069.70 is: 1,051,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,719.84 : 1,895,849.85 = 762,069.70 : x
  2. Step 2: Convert to fraction form
    1,373,719.84/1,895,849.85 = 762,069.70/x
  3. Step 3: Cross multiply
    1,373,719.84x = 1,895,849.85 × 762,069.70
  4. Step 4: Simplify right side
    1,373,719.84x = 1,444,769,731,662.12
  5. Step 5: Solve for x
    x = 1,444,769,731,662.12/1,373,719.84
  6. Step 6: Final answer
    x = 1,051,720.80

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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.