Home / 873,220.44-1,309,830.66-312,220.92

Finding the Fourth Proportional to 873,220.44, 1,309,830.66 and 312,220.92

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Solution

The fourth proportional to 873,220.44, 1,309,830.66 and 312,220.92 is: 468,331.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,220.44 : 1,309,830.66 = 312,220.92 : x
  2. Step 2: Convert to fraction form
    873,220.44/1,309,830.66 = 312,220.92/x
  3. Step 3: Cross multiply
    873,220.44x = 1,309,830.66 × 312,220.92
  4. Step 4: Simplify right side
    873,220.44x = 408,956,533,709.41
  5. Step 5: Solve for x
    x = 408,956,533,709.41/873,220.44
  6. Step 6: Final answer
    x = 468,331.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.