Home / 748,139.21-1,122,366.35-242,660.64

Finding the Fourth Proportional to 748,139.21, 1,122,366.35 and 242,660.64

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Solution

The fourth proportional to 748,139.21, 1,122,366.35 and 242,660.64 is: 364,042.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,139.21 : 1,122,366.35 = 242,660.64 : x
  2. Step 2: Convert to fraction form
    748,139.21/1,122,366.35 = 242,660.64/x
  3. Step 3: Cross multiply
    748,139.21x = 1,122,366.35 × 242,660.64
  4. Step 4: Simplify right side
    748,139.21x = 272,354,131,468.54
  5. Step 5: Solve for x
    x = 272,354,131,468.54/748,139.21
  6. Step 6: Final answer
    x = 364,042.05

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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.