Home / 1,263,139.80-1,894,709.70-730,386.60

Finding the Fourth Proportional to 1,263,139.80, 1,894,709.70 and 730,386.60

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Solution

The fourth proportional to 1,263,139.80, 1,894,709.70 and 730,386.60 is: 1,095,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,139.80 : 1,894,709.70 = 730,386.60 : x
  2. Step 2: Convert to fraction form
    1,263,139.80/1,894,709.70 = 730,386.60/x
  3. Step 3: Cross multiply
    1,263,139.80x = 1,894,709.70 × 730,386.60
  4. Step 4: Simplify right side
    1,263,139.80x = 1,383,870,575,770.02
  5. Step 5: Solve for x
    x = 1,383,870,575,770.02/1,263,139.80
  6. Step 6: Final answer
    x = 1,095,579.90

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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.