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Finding the Fourth Proportional to 505,074.64, 697,007.08 and 275,633.74

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Solution

The fourth proportional to 505,074.64, 697,007.08 and 275,633.74 is: 380,376.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,074.64 : 697,007.08 = 275,633.74 : x
  2. Step 2: Convert to fraction form
    505,074.64/697,007.08 = 275,633.74/x
  3. Step 3: Cross multiply
    505,074.64x = 697,007.08 × 275,633.74
  4. Step 4: Simplify right side
    505,074.64x = 192,118,664,011.58
  5. Step 5: Solve for x
    x = 192,118,664,011.58/505,074.64
  6. Step 6: Final answer
    x = 380,376.78

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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.