Home / 1,216,812.82-1,825,079.78-318,341.26

Finding the Fourth Proportional to 1,216,812.82, 1,825,079.78 and 318,341.26

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Solution

The fourth proportional to 1,216,812.82, 1,825,079.78 and 318,341.26 is: 477,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,812.82 : 1,825,079.78 = 318,341.26 : x
  2. Step 2: Convert to fraction form
    1,216,812.82/1,825,079.78 = 318,341.26/x
  3. Step 3: Cross multiply
    1,216,812.82x = 1,825,079.78 × 318,341.26
  4. Step 4: Simplify right side
    1,216,812.82x = 580,998,186,048.62
  5. Step 5: Solve for x
    x = 580,998,186,048.62/1,216,812.82
  6. Step 6: Final answer
    x = 477,475.40

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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.