Home / 1,216,813.56-1,825,080.89-318,342

Finding the Fourth Proportional to 1,216,813.56, 1,825,080.89 and 318,342

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Solution

The fourth proportional to 1,216,813.56, 1,825,080.89 and 318,342 is: 477,476.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,813.56 : 1,825,080.89 = 318,342 : x
  2. Step 2: Convert to fraction form
    1,216,813.56/1,825,080.89 = 318,342/x
  3. Step 3: Cross multiply
    1,216,813.56x = 1,825,080.89 × 318,342
  4. Step 4: Simplify right side
    1,216,813.56x = 580,999,900,684.38
  5. Step 5: Solve for x
    x = 580,999,900,684.38/1,216,813.56
  6. Step 6: Final answer
    x = 477,476.52

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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.