Home / 1,383,270.75-1,908,928.22-779,658.75

Finding the Fourth Proportional to 1,383,270.75, 1,908,928.22 and 779,658.75

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Solution

The fourth proportional to 1,383,270.75, 1,908,928.22 and 779,658.75 is: 1,075,937.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,270.75 : 1,908,928.22 = 779,658.75 : x
  2. Step 2: Convert to fraction form
    1,383,270.75/1,908,928.22 = 779,658.75/x
  3. Step 3: Cross multiply
    1,383,270.75x = 1,908,928.22 × 779,658.75
  4. Step 4: Simplify right side
    1,383,270.75x = 1,488,312,585,946.63
  5. Step 5: Solve for x
    x = 1,488,312,585,946.63/1,383,270.75
  6. Step 6: Final answer
    x = 1,075,937.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.