Home / 436,446.72-654,670.16-120,903.80

Finding the Fourth Proportional to 436,446.72, 654,670.16 and 120,903.80

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Solution

The fourth proportional to 436,446.72, 654,670.16 and 120,903.80 is: 181,355.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,446.72 : 654,670.16 = 120,903.80 : x
  2. Step 2: Convert to fraction form
    436,446.72/654,670.16 = 120,903.80/x
  3. Step 3: Cross multiply
    436,446.72x = 654,670.16 × 120,903.80
  4. Step 4: Simplify right side
    436,446.72x = 79,152,110,090.61
  5. Step 5: Solve for x
    x = 79,152,110,090.61/436,446.72
  6. Step 6: Final answer
    x = 181,355.72

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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.