Home / 1,399,867.81-2,100,135.44-453,238.81

Finding the Fourth Proportional to 1,399,867.81, 2,100,135.44 and 453,238.81

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Solution

The fourth proportional to 1,399,867.81, 2,100,135.44 and 453,238.81 is: 679,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,867.81 : 2,100,135.44 = 453,238.81 : x
  2. Step 2: Convert to fraction form
    1,399,867.81/2,100,135.44 = 453,238.81/x
  3. Step 3: Cross multiply
    1,399,867.81x = 2,100,135.44 × 453,238.81
  4. Step 4: Simplify right side
    1,399,867.81x = 951,862,885,398.23
  5. Step 5: Solve for x
    x = 951,862,885,398.23/1,399,867.81
  6. Step 6: Final answer
    x = 679,966.26

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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.