Home / 1,399,848.64-2,100,107.40-453,220.36

Finding the Fourth Proportional to 1,399,848.64, 2,100,107.40 and 453,220.36

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Solution

The fourth proportional to 1,399,848.64, 2,100,107.40 and 453,220.36 is: 679,938.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,848.64 : 2,100,107.40 = 453,220.36 : x
  2. Step 2: Convert to fraction form
    1,399,848.64/2,100,107.40 = 453,220.36/x
  3. Step 3: Cross multiply
    1,399,848.64x = 2,100,107.40 × 453,220.36
  4. Step 4: Simplify right side
    1,399,848.64x = 951,811,431,866.66
  5. Step 5: Solve for x
    x = 951,811,431,866.66/1,399,848.64
  6. Step 6: Final answer
    x = 679,938.82

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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.