Home / 436,256.20-654,398.88-120,686.68

Finding the Fourth Proportional to 436,256.20, 654,398.88 and 120,686.68

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Solution

The fourth proportional to 436,256.20, 654,398.88 and 120,686.68 is: 181,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,256.20 : 654,398.88 = 120,686.68 : x
  2. Step 2: Convert to fraction form
    436,256.20/654,398.88 = 120,686.68/x
  3. Step 3: Cross multiply
    436,256.20x = 654,398.88 × 120,686.68
  4. Step 4: Simplify right side
    436,256.20x = 78,977,228,222.92
  5. Step 5: Solve for x
    x = 78,977,228,222.92/436,256.20
  6. Step 6: Final answer
    x = 181,034.05

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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.