Home / 1,087,855.20-1,632,128.40-488,584.80

Finding the Fourth Proportional to 1,087,855.20, 1,632,128.40 and 488,584.80

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Solution

The fourth proportional to 1,087,855.20, 1,632,128.40 and 488,584.80 is: 733,032.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,855.20 : 1,632,128.40 = 488,584.80 : x
  2. Step 2: Convert to fraction form
    1,087,855.20/1,632,128.40 = 488,584.80/x
  3. Step 3: Cross multiply
    1,087,855.20x = 1,632,128.40 × 488,584.80
  4. Step 4: Simplify right side
    1,087,855.20x = 797,433,127,888.32
  5. Step 5: Solve for x
    x = 797,433,127,888.32/1,087,855.20
  6. Step 6: Final answer
    x = 733,032.42

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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.