Home / 1,942,080-2,913,120-612,384

Finding the Fourth Proportional to 1,942,080, 2,913,120 and 612,384

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Solution

The fourth proportional to 1,942,080, 2,913,120 and 612,384 is: 918,576

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,080 : 2,913,120 = 612,384 : x
  2. Step 2: Convert to fraction form
    1,942,080/2,913,120 = 612,384/x
  3. Step 3: Cross multiply
    1,942,080x = 2,913,120 × 612,384
  4. Step 4: Simplify right side
    1,942,080x = 1,783,948,078,080
  5. Step 5: Solve for x
    x = 1,783,948,078,080/1,942,080
  6. Step 6: Final answer
    x = 918,576

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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.