Home / 820,658.68-1,132,697.91-481,236.28

Finding the Fourth Proportional to 820,658.68, 1,132,697.91 and 481,236.28

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Solution

The fourth proportional to 820,658.68, 1,132,697.91 and 481,236.28 is: 664,216.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,658.68 : 1,132,697.91 = 481,236.28 : x
  2. Step 2: Convert to fraction form
    820,658.68/1,132,697.91 = 481,236.28/x
  3. Step 3: Cross multiply
    820,658.68x = 1,132,697.91 × 481,236.28
  4. Step 4: Simplify right side
    820,658.68x = 545,095,328,572.18
  5. Step 5: Solve for x
    x = 545,095,328,572.18/820,658.68
  6. Step 6: Final answer
    x = 664,216.86

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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.