Home / 1,078,266.80-1,617,108.60-320,106.80

Finding the Fourth Proportional to 1,078,266.80, 1,617,108.60 and 320,106.80

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Solution

The fourth proportional to 1,078,266.80, 1,617,108.60 and 320,106.80 is: 480,073.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,266.80 : 1,617,108.60 = 320,106.80 : x
  2. Step 2: Convert to fraction form
    1,078,266.80/1,617,108.60 = 320,106.80/x
  3. Step 3: Cross multiply
    1,078,266.80x = 1,617,108.60 × 320,106.80
  4. Step 4: Simplify right side
    1,078,266.80x = 517,647,459,198.48
  5. Step 5: Solve for x
    x = 517,647,459,198.48/1,078,266.80
  6. Step 6: Final answer
    x = 480,073.63

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1.5x scale

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.