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Finding the Fourth Proportional to 809,438.62, 1,117,019.04 and 446,863

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Solution

The fourth proportional to 809,438.62, 1,117,019.04 and 446,863 is: 616,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,438.62 : 1,117,019.04 = 446,863 : x
  2. Step 2: Convert to fraction form
    809,438.62/1,117,019.04 = 446,863/x
  3. Step 3: Cross multiply
    809,438.62x = 1,117,019.04 × 446,863
  4. Step 4: Simplify right side
    809,438.62x = 499,154,479,271.52
  5. Step 5: Solve for x
    x = 499,154,479,271.52/809,438.62
  6. Step 6: Final answer
    x = 616,667.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.