Home / 1,640,914.83-2,264,690.72-915,809.26

Finding the Fourth Proportional to 1,640,914.83, 2,264,690.72 and 915,809.26

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Solution

The fourth proportional to 1,640,914.83, 2,264,690.72 and 915,809.26 is: 1,263,944.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,914.83 : 2,264,690.72 = 915,809.26 : x
  2. Step 2: Convert to fraction form
    1,640,914.83/2,264,690.72 = 915,809.26/x
  3. Step 3: Cross multiply
    1,640,914.83x = 2,264,690.72 × 915,809.26
  4. Step 4: Simplify right side
    1,640,914.83x = 2,074,024,732,412.07
  5. Step 5: Solve for x
    x = 2,074,024,732,412.07/1,640,914.83
  6. Step 6: Final answer
    x = 1,263,944.17

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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.