Home / 485,816.20-670,427.26-270,970.12

Finding the Fourth Proportional to 485,816.20, 670,427.26 and 270,970.12

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Solution

The fourth proportional to 485,816.20, 670,427.26 and 270,970.12 is: 373,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,816.20 : 670,427.26 = 270,970.12 : x
  2. Step 2: Convert to fraction form
    485,816.20/670,427.26 = 270,970.12/x
  3. Step 3: Cross multiply
    485,816.20x = 670,427.26 × 270,970.12
  4. Step 4: Simplify right side
    485,816.20x = 181,665,755,093.47
  5. Step 5: Solve for x
    x = 181,665,755,093.47/485,816.20
  6. Step 6: Final answer
    x = 373,939.27

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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.