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Finding the Fourth Proportional to 565,764.96, 780,776.82 and 339,366.72

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Solution

The fourth proportional to 565,764.96, 780,776.82 and 339,366.72 is: 468,338.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,764.96 : 780,776.82 = 339,366.72 : x
  2. Step 2: Convert to fraction form
    565,764.96/780,776.82 = 339,366.72/x
  3. Step 3: Cross multiply
    565,764.96x = 780,776.82 × 339,366.72
  4. Step 4: Simplify right side
    565,764.96x = 264,969,668,455.43
  5. Step 5: Solve for x
    x = 264,969,668,455.43/565,764.96
  6. Step 6: Final answer
    x = 468,338.78

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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.