Home / 1,295,105.20-1,942,139.40-453,223.60

Finding the Fourth Proportional to 1,295,105.20, 1,942,139.40 and 453,223.60

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Solution

The fourth proportional to 1,295,105.20, 1,942,139.40 and 453,223.60 is: 679,653.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,105.20 : 1,942,139.40 = 453,223.60 : x
  2. Step 2: Convert to fraction form
    1,295,105.20/1,942,139.40 = 453,223.60/x
  3. Step 3: Cross multiply
    1,295,105.20x = 1,942,139.40 × 453,223.60
  4. Step 4: Simplify right side
    1,295,105.20x = 880,223,410,569.84
  5. Step 5: Solve for x
    x = 880,223,410,569.84/1,295,105.20
  6. Step 6: Final answer
    x = 679,653.99

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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.