Home / 682,651.55-1,023,897.36-429,183.71

Finding the Fourth Proportional to 682,651.55, 1,023,897.36 and 429,183.71

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Solution

The fourth proportional to 682,651.55, 1,023,897.36 and 429,183.71 is: 643,725.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,651.55 : 1,023,897.36 = 429,183.71 : x
  2. Step 2: Convert to fraction form
    682,651.55/1,023,897.36 = 429,183.71/x
  3. Step 3: Cross multiply
    682,651.55x = 1,023,897.36 × 429,183.71
  4. Step 4: Simplify right side
    682,651.55x = 439,440,071,298.84
  5. Step 5: Solve for x
    x = 439,440,071,298.84/682,651.55
  6. Step 6: Final answer
    x = 643,725.30

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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.