Home / 771,045.21-1,156,691.75-265,481.89

Finding the Fourth Proportional to 771,045.21, 1,156,691.75 and 265,481.89

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Solution

The fourth proportional to 771,045.21, 1,156,691.75 and 265,481.89 is: 398,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,045.21 : 1,156,691.75 = 265,481.89 : x
  2. Step 2: Convert to fraction form
    771,045.21/1,156,691.75 = 265,481.89/x
  3. Step 3: Cross multiply
    771,045.21x = 1,156,691.75 × 265,481.89
  4. Step 4: Simplify right side
    771,045.21x = 307,080,707,718.27
  5. Step 5: Solve for x
    x = 307,080,707,718.27/771,045.21
  6. Step 6: Final answer
    x = 398,265.50

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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.