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Finding the Fourth Proportional to 505,524.87, 697,303.94 and 384,400.60

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Solution

The fourth proportional to 505,524.87, 697,303.94 and 384,400.60 is: 530,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,524.87 : 697,303.94 = 384,400.60 : x
  2. Step 2: Convert to fraction form
    505,524.87/697,303.94 = 384,400.60/x
  3. Step 3: Cross multiply
    505,524.87x = 697,303.94 × 384,400.60
  4. Step 4: Simplify right side
    505,524.87x = 268,044,049,253.10
  5. Step 5: Solve for x
    x = 268,044,049,253.10/505,524.87
  6. Step 6: Final answer
    x = 530,229.20

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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.