Home / 743,246.70-1,115,161.65-269,979.90

Finding the Fourth Proportional to 743,246.70, 1,115,161.65 and 269,979.90

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Solution

The fourth proportional to 743,246.70, 1,115,161.65 and 269,979.90 is: 405,075.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,246.70 : 1,115,161.65 = 269,979.90 : x
  2. Step 2: Convert to fraction form
    743,246.70/1,115,161.65 = 269,979.90/x
  3. Step 3: Cross multiply
    743,246.70x = 1,115,161.65 × 269,979.90
  4. Step 4: Simplify right side
    743,246.70x = 301,071,230,750.84
  5. Step 5: Solve for x
    x = 301,071,230,750.84/743,246.70
  6. Step 6: Final answer
    x = 405,075.77

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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.