Home / 1,391,574.51-1,905,983.89-1,309,868.19

Finding the Fourth Proportional to 1,391,574.51, 1,905,983.89 and 1,309,868.19

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Solution

The fourth proportional to 1,391,574.51, 1,905,983.89 and 1,309,868.19 is: 1,794,074.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,574.51 : 1,905,983.89 = 1,309,868.19 : x
  2. Step 2: Convert to fraction form
    1,391,574.51/1,905,983.89 = 1,309,868.19/x
  3. Step 3: Cross multiply
    1,391,574.51x = 1,905,983.89 × 1,309,868.19
  4. Step 4: Simplify right side
    1,391,574.51x = 2,496,587,664,888.79
  5. Step 5: Solve for x
    x = 2,496,587,664,888.79/1,391,574.51
  6. Step 6: Final answer
    x = 1,794,074.01

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.