Home / 1,384,718.90-2,078,007.15-486,158.90

Finding the Fourth Proportional to 1,384,718.90, 2,078,007.15 and 486,158.90

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Solution

The fourth proportional to 1,384,718.90, 2,078,007.15 and 486,158.90 is: 729,564.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,718.90 : 2,078,007.15 = 486,158.90 : x
  2. Step 2: Convert to fraction form
    1,384,718.90/2,078,007.15 = 486,158.90/x
  3. Step 3: Cross multiply
    1,384,718.90x = 2,078,007.15 × 486,158.90
  4. Step 4: Simplify right side
    1,384,718.90x = 1,010,241,670,236.14
  5. Step 5: Solve for x
    x = 1,010,241,670,236.14/1,384,718.90
  6. Step 6: Final answer
    x = 729,564.44

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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.