Home / 1,640,859.22-2,264,499.39-915,848.38

Finding the Fourth Proportional to 1,640,859.22, 2,264,499.39 and 915,848.38

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Solution

The fourth proportional to 1,640,859.22, 2,264,499.39 and 915,848.38 is: 1,263,934.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,859.22 : 2,264,499.39 = 915,848.38 : x
  2. Step 2: Convert to fraction form
    1,640,859.22/2,264,499.39 = 915,848.38/x
  3. Step 3: Cross multiply
    1,640,859.22x = 2,264,499.39 × 915,848.38
  4. Step 4: Simplify right side
    1,640,859.22x = 2,073,938,097,842.49
  5. Step 5: Solve for x
    x = 2,073,938,097,842.49/1,640,859.22
  6. Step 6: Final answer
    x = 1,263,934.21

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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.