Home / 1,427,571.04-1,970,103.20-783,018.40

Finding the Fourth Proportional to 1,427,571.04, 1,970,103.20 and 783,018.40

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Solution

The fourth proportional to 1,427,571.04, 1,970,103.20 and 783,018.40 is: 1,080,595.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,571.04 : 1,970,103.20 = 783,018.40 : x
  2. Step 2: Convert to fraction form
    1,427,571.04/1,970,103.20 = 783,018.40/x
  3. Step 3: Cross multiply
    1,427,571.04x = 1,970,103.20 × 783,018.40
  4. Step 4: Simplify right side
    1,427,571.04x = 1,542,627,055,498.88
  5. Step 5: Solve for x
    x = 1,542,627,055,498.88/1,427,571.04
  6. Step 6: Final answer
    x = 1,080,595.65

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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.