Home / 436,320.96-654,482.34-120,778.80

Finding the Fourth Proportional to 436,320.96, 654,482.34 and 120,778.80

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Solution

The fourth proportional to 436,320.96, 654,482.34 and 120,778.80 is: 181,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,320.96 : 654,482.34 = 120,778.80 : x
  2. Step 2: Convert to fraction form
    436,320.96/654,482.34 = 120,778.80/x
  3. Step 3: Cross multiply
    436,320.96x = 654,482.34 × 120,778.80
  4. Step 4: Simplify right side
    436,320.96x = 79,047,591,646.39
  5. Step 5: Solve for x
    x = 79,047,591,646.39/436,320.96
  6. Step 6: Final answer
    x = 181,168.45

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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.