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Finding the Fourth Proportional to 715,567.56, 987,072.05 and 446,829

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Solution

The fourth proportional to 715,567.56, 987,072.05 and 446,829 is: 616,367.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,567.56 : 987,072.05 = 446,829 : x
  2. Step 2: Convert to fraction form
    715,567.56/987,072.05 = 446,829/x
  3. Step 3: Cross multiply
    715,567.56x = 987,072.05 × 446,829
  4. Step 4: Simplify right side
    715,567.56x = 441,052,417,029.45
  5. Step 5: Solve for x
    x = 441,052,417,029.45/715,567.56
  6. Step 6: Final answer
    x = 616,367.26

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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.