Home / 780,163.43-1,076,488.61-435,889.31

Finding the Fourth Proportional to 780,163.43, 1,076,488.61 and 435,889.31

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Solution

The fourth proportional to 780,163.43, 1,076,488.61 and 435,889.31 is: 601,450.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,163.43 : 1,076,488.61 = 435,889.31 : x
  2. Step 2: Convert to fraction form
    780,163.43/1,076,488.61 = 435,889.31/x
  3. Step 3: Cross multiply
    780,163.43x = 1,076,488.61 × 435,889.31
  4. Step 4: Simplify right side
    780,163.43x = 469,229,869,873.87
  5. Step 5: Solve for x
    x = 469,229,869,873.87/780,163.43
  6. Step 6: Final answer
    x = 601,450.74

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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.