Home / 820,025.68-1,131,644.28-457,446.64

Finding the Fourth Proportional to 820,025.68, 1,131,644.28 and 457,446.64

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Solution

The fourth proportional to 820,025.68, 1,131,644.28 and 457,446.64 is: 631,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,025.68 : 1,131,644.28 = 457,446.64 : x
  2. Step 2: Convert to fraction form
    820,025.68/1,131,644.28 = 457,446.64/x
  3. Step 3: Cross multiply
    820,025.68x = 1,131,644.28 × 457,446.64
  4. Step 4: Simplify right side
    820,025.68x = 517,666,873,561.22
  5. Step 5: Solve for x
    x = 517,666,873,561.22/820,025.68
  6. Step 6: Final answer
    x = 631,281.30

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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.