Home / 668,987.08-1,003,441.74-489,254.56

Finding the Fourth Proportional to 668,987.08, 1,003,441.74 and 489,254.56

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Solution

The fourth proportional to 668,987.08, 1,003,441.74 and 489,254.56 is: 733,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,987.08 : 1,003,441.74 = 489,254.56 : x
  2. Step 2: Convert to fraction form
    668,987.08/1,003,441.74 = 489,254.56/x
  3. Step 3: Cross multiply
    668,987.08x = 1,003,441.74 × 489,254.56
  4. Step 4: Simplify right side
    668,987.08x = 490,938,446,989.33
  5. Step 5: Solve for x
    x = 490,938,446,989.33/668,987.08
  6. Step 6: Final answer
    x = 733,853.41

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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.