Home / 872,263.74-1,308,571.38-311,283.66

Finding the Fourth Proportional to 872,263.74, 1,308,571.38 and 311,283.66

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Solution

The fourth proportional to 872,263.74, 1,308,571.38 and 311,283.66 is: 466,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,263.74 : 1,308,571.38 = 311,283.66 : x
  2. Step 2: Convert to fraction form
    872,263.74/1,308,571.38 = 311,283.66/x
  3. Step 3: Cross multiply
    872,263.74x = 1,308,571.38 × 311,283.66
  4. Step 4: Simplify right side
    872,263.74x = 407,336,888,537.65
  5. Step 5: Solve for x
    x = 407,336,888,537.65/872,263.74
  6. Step 6: Final answer
    x = 466,988.22

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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.