Home / 686,436.47-946,232.26-481,913.63

Finding the Fourth Proportional to 686,436.47, 946,232.26 and 481,913.63

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Solution

The fourth proportional to 686,436.47, 946,232.26 and 481,913.63 is: 664,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,436.47 : 946,232.26 = 481,913.63 : x
  2. Step 2: Convert to fraction form
    686,436.47/946,232.26 = 481,913.63/x
  3. Step 3: Cross multiply
    686,436.47x = 946,232.26 × 481,913.63
  4. Step 4: Simplify right side
    686,436.47x = 456,002,223,239.70
  5. Step 5: Solve for x
    x = 456,002,223,239.70/686,436.47
  6. Step 6: Final answer
    x = 664,303.61

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Double scale
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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.