Home / 1,054,321.72-1,581,245.38-485,156.84

Finding the Fourth Proportional to 1,054,321.72, 1,581,245.38 and 485,156.84

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Solution

The fourth proportional to 1,054,321.72, 1,581,245.38 and 485,156.84 is: 727,626.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,321.72 : 1,581,245.38 = 485,156.84 : x
  2. Step 2: Convert to fraction form
    1,054,321.72/1,581,245.38 = 485,156.84/x
  3. Step 3: Cross multiply
    1,054,321.72x = 1,581,245.38 × 485,156.84
  4. Step 4: Simplify right side
    1,054,321.72x = 767,152,011,825.40
  5. Step 5: Solve for x
    x = 767,152,011,825.40/1,054,321.72
  6. Step 6: Final answer
    x = 727,626.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.