Home / 1,087,907.20-1,632,206.40-488,636.80

Finding the Fourth Proportional to 1,087,907.20, 1,632,206.40 and 488,636.80

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Solution

The fourth proportional to 1,087,907.20, 1,632,206.40 and 488,636.80 is: 733,110.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,907.20 : 1,632,206.40 = 488,636.80 : x
  2. Step 2: Convert to fraction form
    1,087,907.20/1,632,206.40 = 488,636.80/x
  3. Step 3: Cross multiply
    1,087,907.20x = 1,632,206.40 × 488,636.80
  4. Step 4: Simplify right side
    1,087,907.20x = 797,556,112,235.52
  5. Step 5: Solve for x
    x = 797,556,112,235.52/1,087,907.20
  6. Step 6: Final answer
    x = 733,110.43

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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.