Home / 495,956.12-684,544.97-305,140.37

Finding the Fourth Proportional to 495,956.12, 684,544.97 and 305,140.37

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Solution

The fourth proportional to 495,956.12, 684,544.97 and 305,140.37 is: 421,170.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,956.12 : 684,544.97 = 305,140.37 : x
  2. Step 2: Convert to fraction form
    495,956.12/684,544.97 = 305,140.37/x
  3. Step 3: Cross multiply
    495,956.12x = 684,544.97 × 305,140.37
  4. Step 4: Simplify right side
    495,956.12x = 208,882,302,767.57
  5. Step 5: Solve for x
    x = 208,882,302,767.57/495,956.12
  6. Step 6: Final answer
    x = 421,170.94

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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.