Home / 1,185,711.89-1,777,478.01-427,367.76

Finding the Fourth Proportional to 1,185,711.89, 1,777,478.01 and 427,367.76

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Solution

The fourth proportional to 1,185,711.89, 1,777,478.01 and 427,367.76 is: 640,658.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,711.89 : 1,777,478.01 = 427,367.76 : x
  2. Step 2: Convert to fraction form
    1,185,711.89/1,777,478.01 = 427,367.76/x
  3. Step 3: Cross multiply
    1,185,711.89x = 1,777,478.01 × 427,367.76
  4. Step 4: Simplify right side
    1,185,711.89x = 759,636,795,582.96
  5. Step 5: Solve for x
    x = 759,636,795,582.96/1,185,711.89
  6. Step 6: Final answer
    x = 640,658.83

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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.