Home / 631,984.20-872,141.27-345,504.29

Finding the Fourth Proportional to 631,984.20, 872,141.27 and 345,504.29

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Solution

The fourth proportional to 631,984.20, 872,141.27 and 345,504.29 is: 476,797.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,984.20 : 872,141.27 = 345,504.29 : x
  2. Step 2: Convert to fraction form
    631,984.20/872,141.27 = 345,504.29/x
  3. Step 3: Cross multiply
    631,984.20x = 872,141.27 × 345,504.29
  4. Step 4: Simplify right side
    631,984.20x = 301,328,550,271.05
  5. Step 5: Solve for x
    x = 301,328,550,271.05/631,984.20
  6. Step 6: Final answer
    x = 476,797.60

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Double scale
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1.5x scale

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.