Home / 727,632.92-1,004,186.50-421,788.26

Finding the Fourth Proportional to 727,632.92, 1,004,186.50 and 421,788.26

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Solution

The fourth proportional to 727,632.92, 1,004,186.50 and 421,788.26 is: 582,098.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,632.92 : 1,004,186.50 = 421,788.26 : x
  2. Step 2: Convert to fraction form
    727,632.92/1,004,186.50 = 421,788.26/x
  3. Step 3: Cross multiply
    727,632.92x = 1,004,186.50 × 421,788.26
  4. Step 4: Simplify right side
    727,632.92x = 423,554,076,550.49
  5. Step 5: Solve for x
    x = 423,554,076,550.49/727,632.92
  6. Step 6: Final answer
    x = 582,098.56

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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.