Home / 1,120,393.24-1,680,666.44-321,613.36

Finding the Fourth Proportional to 1,120,393.24, 1,680,666.44 and 321,613.36

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Solution

The fourth proportional to 1,120,393.24, 1,680,666.44 and 321,613.36 is: 482,442.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,393.24 : 1,680,666.44 = 321,613.36 : x
  2. Step 2: Convert to fraction form
    1,120,393.24/1,680,666.44 = 321,613.36/x
  3. Step 3: Cross multiply
    1,120,393.24x = 1,680,666.44 × 321,613.36
  4. Step 4: Simplify right side
    1,120,393.24x = 540,524,780,807.64
  5. Step 5: Solve for x
    x = 540,524,780,807.64/1,120,393.24
  6. Step 6: Final answer
    x = 482,442.02

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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.