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Finding the Fourth Proportional to 565,656.68, 780,599.22 and 311,005.64

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Solution

The fourth proportional to 565,656.68, 780,599.22 and 311,005.64 is: 429,183.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,656.68 : 780,599.22 = 311,005.64 : x
  2. Step 2: Convert to fraction form
    565,656.68/780,599.22 = 311,005.64/x
  3. Step 3: Cross multiply
    565,656.68x = 780,599.22 × 311,005.64
  4. Step 4: Simplify right side
    565,656.68x = 242,770,759,999.60
  5. Step 5: Solve for x
    x = 242,770,759,999.60/565,656.68
  6. Step 6: Final answer
    x = 429,183.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.