Home / 926,720.91-1,390,195.85-327,558.51

Finding the Fourth Proportional to 926,720.91, 1,390,195.85 and 327,558.51

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Solution

The fourth proportional to 926,720.91, 1,390,195.85 and 327,558.51 is: 491,378.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,720.91 : 1,390,195.85 = 327,558.51 : x
  2. Step 2: Convert to fraction form
    926,720.91/1,390,195.85 = 327,558.51/x
  3. Step 3: Cross multiply
    926,720.91x = 1,390,195.85 × 327,558.51
  4. Step 4: Simplify right side
    926,720.91x = 455,370,479,596.39
  5. Step 5: Solve for x
    x = 455,370,479,596.39/926,720.91
  6. Step 6: Final answer
    x = 491,378.23

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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.