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Finding the Fourth Proportional to 715,568.06, 987,072.74 and 446,829.50

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Solution

The fourth proportional to 715,568.06, 987,072.74 and 446,829.50 is: 616,367.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,568.06 : 987,072.74 = 446,829.50 : x
  2. Step 2: Convert to fraction form
    715,568.06/987,072.74 = 446,829.50/x
  3. Step 3: Cross multiply
    715,568.06x = 987,072.74 × 446,829.50
  4. Step 4: Simplify right side
    715,568.06x = 441,053,218,877.83
  5. Step 5: Solve for x
    x = 441,053,218,877.83/715,568.06
  6. Step 6: Final answer
    x = 616,367.95

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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.