Home / 1,640,218.80-2,461,019.40-892,801.20

Finding the Fourth Proportional to 1,640,218.80, 2,461,019.40 and 892,801.20

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Solution

The fourth proportional to 1,640,218.80, 2,461,019.40 and 892,801.20 is: 1,339,578.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,218.80 : 2,461,019.40 = 892,801.20 : x
  2. Step 2: Convert to fraction form
    1,640,218.80/2,461,019.40 = 892,801.20/x
  3. Step 3: Cross multiply
    1,640,218.80x = 2,461,019.40 × 892,801.20
  4. Step 4: Simplify right side
    1,640,218.80x = 2,197,201,073,543.28
  5. Step 5: Solve for x
    x = 2,197,201,073,543.28/1,640,218.80
  6. Step 6: Final answer
    x = 1,339,578.03

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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.