Home / 901,815.39-1,244,729.84-520,072.11

Finding the Fourth Proportional to 901,815.39, 1,244,729.84 and 520,072.11

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Solution

The fourth proportional to 901,815.39, 1,244,729.84 and 520,072.11 is: 717,829.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,815.39 : 1,244,729.84 = 520,072.11 : x
  2. Step 2: Convert to fraction form
    901,815.39/1,244,729.84 = 520,072.11/x
  3. Step 3: Cross multiply
    901,815.39x = 1,244,729.84 × 520,072.11
  4. Step 4: Simplify right side
    901,815.39x = 647,349,271,668.40
  5. Step 5: Solve for x
    x = 647,349,271,668.40/901,815.39
  6. Step 6: Final answer
    x = 717,829.04

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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.