Home / 1,640,218.40-2,460,716.40-841,623.20

Finding the Fourth Proportional to 1,640,218.40, 2,460,716.40 and 841,623.20

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Solution

The fourth proportional to 1,640,218.40, 2,460,716.40 and 841,623.20 is: 1,262,634.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,218.40 : 2,460,716.40 = 841,623.20 : x
  2. Step 2: Convert to fraction form
    1,640,218.40/2,460,716.40 = 841,623.20/x
  3. Step 3: Cross multiply
    1,640,218.40x = 2,460,716.40 × 841,623.20
  4. Step 4: Simplify right side
    1,640,218.40x = 2,070,996,010,860.48
  5. Step 5: Solve for x
    x = 2,070,996,010,860.48/1,640,218.40
  6. Step 6: Final answer
    x = 1,262,634.30

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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.