Home / 820,213.52-1,131,897.71-457,652.66

Finding the Fourth Proportional to 820,213.52, 1,131,897.71 and 457,652.66

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Solution

The fourth proportional to 820,213.52, 1,131,897.71 and 457,652.66 is: 631,562.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,213.52 : 1,131,897.71 = 457,652.66 : x
  2. Step 2: Convert to fraction form
    820,213.52/1,131,897.71 = 457,652.66/x
  3. Step 3: Cross multiply
    820,213.52x = 1,131,897.71 × 457,652.66
  4. Step 4: Simplify right side
    820,213.52x = 518,015,993,314.05
  5. Step 5: Solve for x
    x = 518,015,993,314.05/820,213.52
  6. Step 6: Final answer
    x = 631,562.37

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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.