Home / 810,953.24-1,216,930.13-411,880.41

Finding the Fourth Proportional to 810,953.24, 1,216,930.13 and 411,880.41

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Solution

The fourth proportional to 810,953.24, 1,216,930.13 and 411,880.41 is: 618,074.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,953.24 : 1,216,930.13 = 411,880.41 : x
  2. Step 2: Convert to fraction form
    810,953.24/1,216,930.13 = 411,880.41/x
  3. Step 3: Cross multiply
    810,953.24x = 1,216,930.13 × 411,880.41
  4. Step 4: Simplify right side
    810,953.24x = 501,229,680,370.90
  5. Step 5: Solve for x
    x = 501,229,680,370.90/810,953.24
  6. Step 6: Final answer
    x = 618,074.70

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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.