Home / 1,275,126.68-1,912,239.80-376,328

Finding the Fourth Proportional to 1,275,126.68, 1,912,239.80 and 376,328

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Solution

The fourth proportional to 1,275,126.68, 1,912,239.80 and 376,328 is: 564,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,126.68 : 1,912,239.80 = 376,328 : x
  2. Step 2: Convert to fraction form
    1,275,126.68/1,912,239.80 = 376,328/x
  3. Step 3: Cross multiply
    1,275,126.68x = 1,912,239.80 × 376,328
  4. Step 4: Simplify right side
    1,275,126.68x = 719,629,379,454.40
  5. Step 5: Solve for x
    x = 719,629,379,454.40/1,275,126.68
  6. Step 6: Final answer
    x = 564,359.13

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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.