Home / 485,816.21-670,427.27-270,970.13

Finding the Fourth Proportional to 485,816.21, 670,427.27 and 270,970.13

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Solution

The fourth proportional to 485,816.21, 670,427.27 and 270,970.13 is: 373,939.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,816.21 : 670,427.27 = 270,970.13 : x
  2. Step 2: Convert to fraction form
    485,816.21/670,427.27 = 270,970.13/x
  3. Step 3: Cross multiply
    485,816.21x = 670,427.27 × 270,970.13
  4. Step 4: Simplify right side
    485,816.21x = 181,665,764,507.45
  5. Step 5: Solve for x
    x = 181,665,764,507.45/485,816.21
  6. Step 6: Final answer
    x = 373,939.28

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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.