Home / 991,289.45-1,486,935.35-271,637.21

Finding the Fourth Proportional to 991,289.45, 1,486,935.35 and 271,637.21

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Solution

The fourth proportional to 991,289.45, 1,486,935.35 and 271,637.21 is: 407,456.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,289.45 : 1,486,935.35 = 271,637.21 : x
  2. Step 2: Convert to fraction form
    991,289.45/1,486,935.35 = 271,637.21/x
  3. Step 3: Cross multiply
    991,289.45x = 1,486,935.35 × 271,637.21
  4. Step 4: Simplify right side
    991,289.45x = 403,906,969,924.37
  5. Step 5: Solve for x
    x = 403,906,969,924.37/991,289.45
  6. Step 6: Final answer
    x = 407,456.14

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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.