Home / 1,453,139.20-2,179,449.60-919,705.60

Finding the Fourth Proportional to 1,453,139.20, 2,179,449.60 and 919,705.60

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Solution

The fourth proportional to 1,453,139.20, 2,179,449.60 and 919,705.60 is: 1,379,394.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453,139.20 : 2,179,449.60 = 919,705.60 : x
  2. Step 2: Convert to fraction form
    1,453,139.20/2,179,449.60 = 919,705.60/x
  3. Step 3: Cross multiply
    1,453,139.20x = 2,179,449.60 × 919,705.60
  4. Step 4: Simplify right side
    1,453,139.20x = 2,004,452,002,037.76
  5. Step 5: Solve for x
    x = 2,004,452,002,037.76/1,453,139.20
  6. Step 6: Final answer
    x = 1,379,394.35

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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.