Home / 719,108.51-1,078,382.39-269,584.34

Finding the Fourth Proportional to 719,108.51, 1,078,382.39 and 269,584.34

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Solution

The fourth proportional to 719,108.51, 1,078,382.39 and 269,584.34 is: 404,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,108.51 : 1,078,382.39 = 269,584.34 : x
  2. Step 2: Convert to fraction form
    719,108.51/1,078,382.39 = 269,584.34/x
  3. Step 3: Cross multiply
    719,108.51x = 1,078,382.39 × 269,584.34
  4. Step 4: Simplify right side
    719,108.51x = 290,714,998,135.94
  5. Step 5: Solve for x
    x = 290,714,998,135.94/719,108.51
  6. Step 6: Final answer
    x = 404,271.39

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Double scale
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1.5x scale

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.