Home / 686,436.72-946,232.61-481,913.88

Finding the Fourth Proportional to 686,436.72, 946,232.61 and 481,913.88

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Solution

The fourth proportional to 686,436.72, 946,232.61 and 481,913.88 is: 664,303.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,436.72 : 946,232.61 = 481,913.88 : x
  2. Step 2: Convert to fraction form
    686,436.72/946,232.61 = 481,913.88/x
  3. Step 3: Cross multiply
    686,436.72x = 946,232.61 × 481,913.88
  4. Step 4: Simplify right side
    686,436.72x = 456,002,628,467.63
  5. Step 5: Solve for x
    x = 456,002,628,467.63/686,436.72
  6. Step 6: Final answer
    x = 664,303.96

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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.