Home / 1,387,096.47-2,080,644.72-389,824.47

Finding the Fourth Proportional to 1,387,096.47, 2,080,644.72 and 389,824.47

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Solution

The fourth proportional to 1,387,096.47, 2,080,644.72 and 389,824.47 is: 584,736.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,096.47 : 2,080,644.72 = 389,824.47 : x
  2. Step 2: Convert to fraction form
    1,387,096.47/2,080,644.72 = 389,824.47/x
  3. Step 3: Cross multiply
    1,387,096.47x = 2,080,644.72 × 389,824.47
  4. Step 4: Simplify right side
    1,387,096.47x = 811,086,225,232.30
  5. Step 5: Solve for x
    x = 811,086,225,232.30/1,387,096.47
  6. Step 6: Final answer
    x = 584,736.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.