Home / 1,179,008.10-1,768,512.15-421,212.60

Finding the Fourth Proportional to 1,179,008.10, 1,768,512.15 and 421,212.60

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Solution

The fourth proportional to 1,179,008.10, 1,768,512.15 and 421,212.60 is: 631,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,008.10 : 1,768,512.15 = 421,212.60 : x
  2. Step 2: Convert to fraction form
    1,179,008.10/1,768,512.15 = 421,212.60/x
  3. Step 3: Cross multiply
    1,179,008.10x = 1,768,512.15 × 421,212.60
  4. Step 4: Simplify right side
    1,179,008.10x = 744,919,600,833.09
  5. Step 5: Solve for x
    x = 744,919,600,833.09/1,179,008.10
  6. Step 6: Final answer
    x = 631,818.90

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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.