Home / 913,630.46-1,260,794.78-505,723.56

Finding the Fourth Proportional to 913,630.46, 1,260,794.78 and 505,723.56

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Solution

The fourth proportional to 913,630.46, 1,260,794.78 and 505,723.56 is: 697,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,630.46 : 1,260,794.78 = 505,723.56 : x
  2. Step 2: Convert to fraction form
    913,630.46/1,260,794.78 = 505,723.56/x
  3. Step 3: Cross multiply
    913,630.46x = 1,260,794.78 × 505,723.56
  4. Step 4: Simplify right side
    913,630.46x = 637,613,624,571.02
  5. Step 5: Solve for x
    x = 637,613,624,571.02/913,630.46
  6. Step 6: Final answer
    x = 697,890.07

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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.