Home / 1,120,803.06-1,680,610.44-488,978.76

Finding the Fourth Proportional to 1,120,803.06, 1,680,610.44 and 488,978.76

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Solution

The fourth proportional to 1,120,803.06, 1,680,610.44 and 488,978.76 is: 733,208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,803.06 : 1,680,610.44 = 488,978.76 : x
  2. Step 2: Convert to fraction form
    1,120,803.06/1,680,610.44 = 488,978.76/x
  3. Step 3: Cross multiply
    1,120,803.06x = 1,680,610.44 × 488,978.76
  4. Step 4: Simplify right side
    1,120,803.06x = 821,782,808,994.25
  5. Step 5: Solve for x
    x = 821,782,808,994.25/1,120,803.06
  6. Step 6: Final answer
    x = 733,208.93

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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.