Home / 1,389,307.12-2,082,546.41-631,686.58

Finding the Fourth Proportional to 1,389,307.12, 2,082,546.41 and 631,686.58

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Solution

The fourth proportional to 1,389,307.12, 2,082,546.41 and 631,686.58 is: 946,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,307.12 : 2,082,546.41 = 631,686.58 : x
  2. Step 2: Convert to fraction form
    1,389,307.12/2,082,546.41 = 631,686.58/x
  3. Step 3: Cross multiply
    1,389,307.12x = 2,082,546.41 × 631,686.58
  4. Step 4: Simplify right side
    1,389,307.12x = 1,315,516,619,424.18
  5. Step 5: Solve for x
    x = 1,315,516,619,424.18/1,389,307.12
  6. Step 6: Final answer
    x = 946,886.83

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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.