Home / 1,399,869.56-2,100,138.06-453,240.56

Finding the Fourth Proportional to 1,399,869.56, 2,100,138.06 and 453,240.56

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Solution

The fourth proportional to 1,399,869.56, 2,100,138.06 and 453,240.56 is: 679,968.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,869.56 : 2,100,138.06 = 453,240.56 : x
  2. Step 2: Convert to fraction form
    1,399,869.56/2,100,138.06 = 453,240.56/x
  3. Step 3: Cross multiply
    1,399,869.56x = 2,100,138.06 × 453,240.56
  4. Step 4: Simplify right side
    1,399,869.56x = 951,867,750,391.71
  5. Step 5: Solve for x
    x = 951,867,750,391.71/1,399,869.56
  6. Step 6: Final answer
    x = 679,968.89

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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.