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Finding the Fourth Proportional to 485,800.29, 670,405.59 and 270,954.27

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Solution

The fourth proportional to 485,800.29, 670,405.59 and 270,954.27 is: 373,917.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,800.29 : 670,405.59 = 270,954.27 : x
  2. Step 2: Convert to fraction form
    485,800.29/670,405.59 = 270,954.27/x
  3. Step 3: Cross multiply
    485,800.29x = 670,405.59 × 270,954.27
  4. Step 4: Simplify right side
    485,800.29x = 181,649,257,242.37
  5. Step 5: Solve for x
    x = 181,649,257,242.37/485,800.29
  6. Step 6: Final answer
    x = 373,917.56

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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.