Home / 1,916,853.45-2,645,265.15-1,057,401.33

Finding the Fourth Proportional to 1,916,853.45, 2,645,265.15 and 1,057,401.33

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Solution

The fourth proportional to 1,916,853.45, 2,645,265.15 and 1,057,401.33 is: 1,459,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,853.45 : 2,645,265.15 = 1,057,401.33 : x
  2. Step 2: Convert to fraction form
    1,916,853.45/2,645,265.15 = 1,057,401.33/x
  3. Step 3: Cross multiply
    1,916,853.45x = 2,645,265.15 × 1,057,401.33
  4. Step 4: Simplify right side
    1,916,853.45x = 2,797,106,887,812.65
  5. Step 5: Solve for x
    x = 2,797,106,887,812.65/1,916,853.45
  6. Step 6: Final answer
    x = 1,459,217.91

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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.