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Finding the Fourth Proportional to 715,456.62, 986,919.01 and 446,718.06

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Solution

The fourth proportional to 715,456.62, 986,919.01 and 446,718.06 is: 616,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,456.62 : 986,919.01 = 446,718.06 : x
  2. Step 2: Convert to fraction form
    715,456.62/986,919.01 = 446,718.06/x
  3. Step 3: Cross multiply
    715,456.62x = 986,919.01 × 446,718.06
  4. Step 4: Simplify right side
    715,456.62x = 440,874,545,524.32
  5. Step 5: Solve for x
    x = 440,874,545,524.32/715,456.62
  6. Step 6: Final answer
    x = 616,214.22

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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.