Home / 1,209,257.85-1,668,725.79-657,975.82

Finding the Fourth Proportional to 1,209,257.85, 1,668,725.79 and 657,975.82

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Solution

The fourth proportional to 1,209,257.85, 1,668,725.79 and 657,975.82 is: 907,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,257.85 : 1,668,725.79 = 657,975.82 : x
  2. Step 2: Convert to fraction form
    1,209,257.85/1,668,725.79 = 657,975.82/x
  3. Step 3: Cross multiply
    1,209,257.85x = 1,668,725.79 × 657,975.82
  4. Step 4: Simplify right side
    1,209,257.85x = 1,097,981,226,765.00
  5. Step 5: Solve for x
    x = 1,097,981,226,765.00/1,209,257.85
  6. Step 6: Final answer
    x = 907,979.41

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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.