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Finding the Fourth Proportional to 563,441.30, 777,544.53 and 308,791.88

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Solution

The fourth proportional to 563,441.30, 777,544.53 and 308,791.88 is: 426,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,441.30 : 777,544.53 = 308,791.88 : x
  2. Step 2: Convert to fraction form
    563,441.30/777,544.53 = 308,791.88/x
  3. Step 3: Cross multiply
    563,441.30x = 777,544.53 × 308,791.88
  4. Step 4: Simplify right side
    563,441.30x = 240,099,437,202.42
  5. Step 5: Solve for x
    x = 240,099,437,202.42/563,441.30
  6. Step 6: Final answer
    x = 426,130.35

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1.5x scale

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.