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Finding the Fourth Proportional to 715,570.56, 987,076.19 and 446,832

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Solution

The fourth proportional to 715,570.56, 987,076.19 and 446,832 is: 616,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,570.56 : 987,076.19 = 446,832 : x
  2. Step 2: Convert to fraction form
    715,570.56/987,076.19 = 446,832/x
  3. Step 3: Cross multiply
    715,570.56x = 987,076.19 × 446,832
  4. Step 4: Simplify right side
    715,570.56x = 441,057,225,895.92
  5. Step 5: Solve for x
    x = 441,057,225,895.92/715,570.56
  6. Step 6: Final answer
    x = 616,371.40

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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.