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Finding the Fourth Proportional to 407,767.20, 610,441.20 and 303,050.40

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Solution

The fourth proportional to 407,767.20, 610,441.20 and 303,050.40 is: 453,676.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,767.20 : 610,441.20 = 303,050.40 : x
  2. Step 2: Convert to fraction form
    407,767.20/610,441.20 = 303,050.40/x
  3. Step 3: Cross multiply
    407,767.20x = 610,441.20 × 303,050.40
  4. Step 4: Simplify right side
    407,767.20x = 184,994,449,836.48
  5. Step 5: Solve for x
    x = 184,994,449,836.48/407,767.20
  6. Step 6: Final answer
    x = 453,676.63

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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.