Home / 1,208,253.80-1,667,417.66-664,419.80

Finding the Fourth Proportional to 1,208,253.80, 1,667,417.66 and 664,419.80

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Solution

The fourth proportional to 1,208,253.80, 1,667,417.66 and 664,419.80 is: 916,914.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,253.80 : 1,667,417.66 = 664,419.80 : x
  2. Step 2: Convert to fraction form
    1,208,253.80/1,667,417.66 = 664,419.80/x
  3. Step 3: Cross multiply
    1,208,253.80x = 1,667,417.66 × 664,419.80
  4. Step 4: Simplify right side
    1,208,253.80x = 1,107,865,296,514.48
  5. Step 5: Solve for x
    x = 1,107,865,296,514.48/1,208,253.80
  6. Step 6: Final answer
    x = 916,914.39

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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.