Home / 788,731.44-1,088,387.64-449,133.36

Finding the Fourth Proportional to 788,731.44, 1,088,387.64 and 449,133.36

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Solution

The fourth proportional to 788,731.44, 1,088,387.64 and 449,133.36 is: 619,768.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,731.44 : 1,088,387.64 = 449,133.36 : x
  2. Step 2: Convert to fraction form
    788,731.44/1,088,387.64 = 449,133.36/x
  3. Step 3: Cross multiply
    788,731.44x = 1,088,387.64 × 449,133.36
  4. Step 4: Simplify right side
    788,731.44x = 488,831,197,735.67
  5. Step 5: Solve for x
    x = 488,831,197,735.67/788,731.44
  6. Step 6: Final answer
    x = 619,768.88

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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.