Home / 1,208,097.09-1,667,129.13-664,200.45

Finding the Fourth Proportional to 1,208,097.09, 1,667,129.13 and 664,200.45

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Solution

The fourth proportional to 1,208,097.09, 1,667,129.13 and 664,200.45 is: 916,571.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,097.09 : 1,667,129.13 = 664,200.45 : x
  2. Step 2: Convert to fraction form
    1,208,097.09/1,667,129.13 = 664,200.45/x
  3. Step 3: Cross multiply
    1,208,097.09x = 1,667,129.13 × 664,200.45
  4. Step 4: Simplify right side
    1,208,097.09x = 1,107,307,918,354.11
  5. Step 5: Solve for x
    x = 1,107,307,918,354.11/1,208,097.09
  6. Step 6: Final answer
    x = 916,571.96

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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.