Home / 485,830.64-670,447.30-270,965.18

Finding the Fourth Proportional to 485,830.64, 670,447.30 and 270,965.18

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Solution

The fourth proportional to 485,830.64, 670,447.30 and 270,965.18 is: 373,932.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,830.64 : 670,447.30 = 270,965.18 : x
  2. Step 2: Convert to fraction form
    485,830.64/670,447.30 = 270,965.18/x
  3. Step 3: Cross multiply
    485,830.64x = 670,447.30 × 270,965.18
  4. Step 4: Simplify right side
    485,830.64x = 181,667,873,325.01
  5. Step 5: Solve for x
    x = 181,667,873,325.01/485,830.64
  6. Step 6: Final answer
    x = 373,932.52

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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.