Home / 1,328,278.40-1,993,000.80-617,940.80

Finding the Fourth Proportional to 1,328,278.40, 1,993,000.80 and 617,940.80

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Solution

The fourth proportional to 1,328,278.40, 1,993,000.80 and 617,940.80 is: 927,182.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,278.40 : 1,993,000.80 = 617,940.80 : x
  2. Step 2: Convert to fraction form
    1,328,278.40/1,993,000.80 = 617,940.80/x
  3. Step 3: Cross multiply
    1,328,278.40x = 1,993,000.80 × 617,940.80
  4. Step 4: Simplify right side
    1,328,278.40x = 1,231,556,508,752.64
  5. Step 5: Solve for x
    x = 1,231,556,508,752.64/1,328,278.40
  6. Step 6: Final answer
    x = 927,182.52

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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.