Home / 727,632.60-1,004,206.86-405,395.16

Finding the Fourth Proportional to 727,632.60, 1,004,206.86 and 405,395.16

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Solution

The fourth proportional to 727,632.60, 1,004,206.86 and 405,395.16 is: 559,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,632.60 : 1,004,206.86 = 405,395.16 : x
  2. Step 2: Convert to fraction form
    727,632.60/1,004,206.86 = 405,395.16/x
  3. Step 3: Cross multiply
    727,632.60x = 1,004,206.86 × 405,395.16
  4. Step 4: Simplify right side
    727,632.60x = 407,100,600,682.80
  5. Step 5: Solve for x
    x = 407,100,600,682.80/727,632.60
  6. Step 6: Final answer
    x = 559,486.48

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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.