Home / 987,511.76-1,481,267.64-277,539.81

Finding the Fourth Proportional to 987,511.76, 1,481,267.64 and 277,539.81

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Solution

The fourth proportional to 987,511.76, 1,481,267.64 and 277,539.81 is: 416,309.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,511.76 : 1,481,267.64 = 277,539.81 : x
  2. Step 2: Convert to fraction form
    987,511.76/1,481,267.64 = 277,539.81/x
  3. Step 3: Cross multiply
    987,511.76x = 1,481,267.64 × 277,539.81
  4. Step 4: Simplify right side
    987,511.76x = 411,110,739,364.75
  5. Step 5: Solve for x
    x = 411,110,739,364.75/987,511.76
  6. Step 6: Final answer
    x = 416,309.72

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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.