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Finding the Fourth Proportional to 715,952.00, 988,013.55 and 393,682.97

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Solution

The fourth proportional to 715,952.00, 988,013.55 and 393,682.97 is: 543,282.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,952.00 : 988,013.55 = 393,682.97 : x
  2. Step 2: Convert to fraction form
    715,952.00/988,013.55 = 393,682.97/x
  3. Step 3: Cross multiply
    715,952.00x = 988,013.55 × 393,682.97
  4. Step 4: Simplify right side
    715,952.00x = 388,964,104,938.55
  5. Step 5: Solve for x
    x = 388,964,104,938.55/715,952.00
  6. Step 6: Final answer
    x = 543,282.38

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1.5x scale

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.