Home / 1,640,494.78-2,263,889.06-915,373.06

Finding the Fourth Proportional to 1,640,494.78, 2,263,889.06 and 915,373.06

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Solution

The fourth proportional to 1,640,494.78, 2,263,889.06 and 915,373.06 is: 1,263,218.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,494.78 : 2,263,889.06 = 915,373.06 : x
  2. Step 2: Convert to fraction form
    1,640,494.78/2,263,889.06 = 915,373.06/x
  3. Step 3: Cross multiply
    1,640,494.78x = 2,263,889.06 × 915,373.06
  4. Step 4: Simplify right side
    1,640,494.78x = 2,072,303,056,352.72
  5. Step 5: Solve for x
    x = 2,072,303,056,352.72/1,640,494.78
  6. Step 6: Final answer
    x = 1,263,218.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.