Home / 874,661.54-1,206,995.63-487,456.35

Finding the Fourth Proportional to 874,661.54, 1,206,995.63 and 487,456.35

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Solution

The fourth proportional to 874,661.54, 1,206,995.63 and 487,456.35 is: 672,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,661.54 : 1,206,995.63 = 487,456.35 : x
  2. Step 2: Convert to fraction form
    874,661.54/1,206,995.63 = 487,456.35/x
  3. Step 3: Cross multiply
    874,661.54x = 1,206,995.63 × 487,456.35
  4. Step 4: Simplify right side
    874,661.54x = 588,357,681,828.47
  5. Step 5: Solve for x
    x = 588,357,681,828.47/874,661.54
  6. Step 6: Final answer
    x = 672,668.98

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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.