Home / 1,217,484.72-1,826,476.16-418,662.48

Finding the Fourth Proportional to 1,217,484.72, 1,826,476.16 and 418,662.48

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Solution

The fourth proportional to 1,217,484.72, 1,826,476.16 and 418,662.48 is: 628,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,484.72 : 1,826,476.16 = 418,662.48 : x
  2. Step 2: Convert to fraction form
    1,217,484.72/1,826,476.16 = 418,662.48/x
  3. Step 3: Cross multiply
    1,217,484.72x = 1,826,476.16 × 418,662.48
  4. Step 4: Simplify right side
    1,217,484.72x = 764,677,038,806.48
  5. Step 5: Solve for x
    x = 764,677,038,806.48/1,217,484.72
  6. Step 6: Final answer
    x = 628,079.37

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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.