Home / 1,299,765.40-1,947,023.70-738,143.80

Finding the Fourth Proportional to 1,299,765.40, 1,947,023.70 and 738,143.80

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Solution

The fourth proportional to 1,299,765.40, 1,947,023.70 and 738,143.80 is: 1,105,725.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,765.40 : 1,947,023.70 = 738,143.80 : x
  2. Step 2: Convert to fraction form
    1,299,765.40/1,947,023.70 = 738,143.80/x
  3. Step 3: Cross multiply
    1,299,765.40x = 1,947,023.70 × 738,143.80
  4. Step 4: Simplify right side
    1,299,765.40x = 1,437,183,472,608.06
  5. Step 5: Solve for x
    x = 1,437,183,472,608.06/1,299,765.40
  6. Step 6: Final answer
    x = 1,105,725.29

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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.