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Finding the Fourth Proportional to 565,599.69, 780,559.11 and 311,003.73

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Solution

The fourth proportional to 565,599.69, 780,559.11 and 311,003.73 is: 429,202.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,599.69 : 780,559.11 = 311,003.73 : x
  2. Step 2: Convert to fraction form
    565,599.69/780,559.11 = 311,003.73/x
  3. Step 3: Cross multiply
    565,599.69x = 780,559.11 × 311,003.73
  4. Step 4: Simplify right side
    565,599.69x = 242,756,794,695.48
  5. Step 5: Solve for x
    x = 242,756,794,695.48/565,599.69
  6. Step 6: Final answer
    x = 429,202.49

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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.