Home / 857,776.32-1,286,656.56-218,081.52

Finding the Fourth Proportional to 857,776.32, 1,286,656.56 and 218,081.52

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Solution

The fourth proportional to 857,776.32, 1,286,656.56 and 218,081.52 is: 327,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,776.32 : 1,286,656.56 = 218,081.52 : x
  2. Step 2: Convert to fraction form
    857,776.32/1,286,656.56 = 218,081.52/x
  3. Step 3: Cross multiply
    857,776.32x = 1,286,656.56 × 218,081.52
  4. Step 4: Simplify right side
    857,776.32x = 280,596,018,322.77
  5. Step 5: Solve for x
    x = 280,596,018,322.77/857,776.32
  6. Step 6: Final answer
    x = 327,120.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.