Home / 719,381.65-1,078,328.89-269,785.48

Finding the Fourth Proportional to 719,381.65, 1,078,328.89 and 269,785.48

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Solution

The fourth proportional to 719,381.65, 1,078,328.89 and 269,785.48 is: 404,399.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,381.65 : 1,078,328.89 = 269,785.48 : x
  2. Step 2: Convert to fraction form
    719,381.65/1,078,328.89 = 269,785.48/x
  3. Step 3: Cross multiply
    719,381.65x = 1,078,328.89 × 269,785.48
  4. Step 4: Simplify right side
    719,381.65x = 290,917,477,186.52
  5. Step 5: Solve for x
    x = 290,917,477,186.52/719,381.65
  6. Step 6: Final answer
    x = 404,399.36

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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.