Home / 1,113,855.12-1,670,849.46-315,197.28

Finding the Fourth Proportional to 1,113,855.12, 1,670,849.46 and 315,197.28

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Solution

The fourth proportional to 1,113,855.12, 1,670,849.46 and 315,197.28 is: 472,814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,855.12 : 1,670,849.46 = 315,197.28 : x
  2. Step 2: Convert to fraction form
    1,113,855.12/1,670,849.46 = 315,197.28/x
  3. Step 3: Cross multiply
    1,113,855.12x = 1,670,849.46 × 315,197.28
  4. Step 4: Simplify right side
    1,113,855.12x = 526,647,205,081.47
  5. Step 5: Solve for x
    x = 526,647,205,081.47/1,113,855.12
  6. Step 6: Final answer
    x = 472,814.82

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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.