Home / 397,867.72-549,305.52-276,964.96

Finding the Fourth Proportional to 397,867.72, 549,305.52 and 276,964.96

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Solution

The fourth proportional to 397,867.72, 549,305.52 and 276,964.96 is: 382,384.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,867.72 : 549,305.52 = 276,964.96 : x
  2. Step 2: Convert to fraction form
    397,867.72/549,305.52 = 276,964.96/x
  3. Step 3: Cross multiply
    397,867.72x = 549,305.52 × 276,964.96
  4. Step 4: Simplify right side
    397,867.72x = 152,138,381,374.58
  5. Step 5: Solve for x
    x = 152,138,381,374.58/397,867.72
  6. Step 6: Final answer
    x = 382,384.33

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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.