Home / 1,323,450.80-1,985,176.20-326,178.80

Finding the Fourth Proportional to 1,323,450.80, 1,985,176.20 and 326,178.80

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Solution

The fourth proportional to 1,323,450.80, 1,985,176.20 and 326,178.80 is: 489,268.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,450.80 : 1,985,176.20 = 326,178.80 : x
  2. Step 2: Convert to fraction form
    1,323,450.80/1,985,176.20 = 326,178.80/x
  3. Step 3: Cross multiply
    1,323,450.80x = 1,985,176.20 × 326,178.80
  4. Step 4: Simplify right side
    1,323,450.80x = 647,522,390,704.56
  5. Step 5: Solve for x
    x = 647,522,390,704.56/1,323,450.80
  6. Step 6: Final answer
    x = 489,268.20

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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.