Home / 987,689.55-1,481,534.90-277,717.59

Finding the Fourth Proportional to 987,689.55, 1,481,534.90 and 277,717.59

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Solution

The fourth proportional to 987,689.55, 1,481,534.90 and 277,717.59 is: 416,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,689.55 : 1,481,534.90 = 277,717.59 : x
  2. Step 2: Convert to fraction form
    987,689.55/1,481,534.90 = 277,717.59/x
  3. Step 3: Cross multiply
    987,689.55x = 1,481,534.90 × 277,717.59
  4. Step 4: Simplify right side
    987,689.55x = 411,448,296,633.85
  5. Step 5: Solve for x
    x = 411,448,296,633.85/987,689.55
  6. Step 6: Final answer
    x = 416,576.54

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1.5x scale

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.