Home / 1,640,792.43-2,264,022.69-915,638.40

Finding the Fourth Proportional to 1,640,792.43, 2,264,022.69 and 915,638.40

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Solution

The fourth proportional to 1,640,792.43, 2,264,022.69 and 915,638.40 is: 1,263,429.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,792.43 : 2,264,022.69 = 915,638.40 : x
  2. Step 2: Convert to fraction form
    1,640,792.43/2,264,022.69 = 915,638.40/x
  3. Step 3: Cross multiply
    1,640,792.43x = 2,264,022.69 × 915,638.40
  4. Step 4: Simplify right side
    1,640,792.43x = 2,073,026,113,435.30
  5. Step 5: Solve for x
    x = 2,073,026,113,435.30/1,640,792.43
  6. Step 6: Final answer
    x = 1,263,429.84

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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.