Home / 1,389,306.12-2,082,544.91-631,685.58

Finding the Fourth Proportional to 1,389,306.12, 2,082,544.91 and 631,685.58

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Solution

The fourth proportional to 1,389,306.12, 2,082,544.91 and 631,685.58 is: 946,885.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,306.12 : 2,082,544.91 = 631,685.58 : x
  2. Step 2: Convert to fraction form
    1,389,306.12/2,082,544.91 = 631,685.58/x
  3. Step 3: Cross multiply
    1,389,306.12x = 2,082,544.91 × 631,685.58
  4. Step 4: Simplify right side
    1,389,306.12x = 1,315,513,589,349.40
  5. Step 5: Solve for x
    x = 1,315,513,589,349.40/1,389,306.12
  6. Step 6: Final answer
    x = 946,885.33

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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.