Home / 1,439,313.81-1,985,536.31-858,127.79

Finding the Fourth Proportional to 1,439,313.81, 1,985,536.31 and 858,127.79

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Solution

The fourth proportional to 1,439,313.81, 1,985,536.31 and 858,127.79 is: 1,183,789.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,313.81 : 1,985,536.31 = 858,127.79 : x
  2. Step 2: Convert to fraction form
    1,439,313.81/1,985,536.31 = 858,127.79/x
  3. Step 3: Cross multiply
    1,439,313.81x = 1,985,536.31 × 858,127.79
  4. Step 4: Simplify right side
    1,439,313.81x = 1,703,843,885,665.06
  5. Step 5: Solve for x
    x = 1,703,843,885,665.06/1,439,313.81
  6. Step 6: Final answer
    x = 1,183,789.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.