Home / 739,960.70-1,109,491.58-290,142.65

Finding the Fourth Proportional to 739,960.70, 1,109,491.58 and 290,142.65

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Solution

The fourth proportional to 739,960.70, 1,109,491.58 and 290,142.65 is: 435,037.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,960.70 : 1,109,491.58 = 290,142.65 : x
  2. Step 2: Convert to fraction form
    739,960.70/1,109,491.58 = 290,142.65/x
  3. Step 3: Cross multiply
    739,960.70x = 1,109,491.58 × 290,142.65
  4. Step 4: Simplify right side
    739,960.70x = 321,910,827,173.89
  5. Step 5: Solve for x
    x = 321,910,827,173.89/739,960.70
  6. Step 6: Final answer
    x = 435,037.74

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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.