Home / 621,718.32-931,357.14-322,394.58

Finding the Fourth Proportional to 621,718.32, 931,357.14 and 322,394.58

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Solution

The fourth proportional to 621,718.32, 931,357.14 and 322,394.58 is: 482,959.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,718.32 : 931,357.14 = 322,394.58 : x
  2. Step 2: Convert to fraction form
    621,718.32/931,357.14 = 322,394.58/x
  3. Step 3: Cross multiply
    621,718.32x = 931,357.14 × 322,394.58
  4. Step 4: Simplify right side
    621,718.32x = 300,264,493,980.30
  5. Step 5: Solve for x
    x = 300,264,493,980.30/621,718.32
  6. Step 6: Final answer
    x = 482,959.06

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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.