Home / 1,383,271.75-1,908,929.60-779,659.75

Finding the Fourth Proportional to 1,383,271.75, 1,908,929.60 and 779,659.75

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Solution

The fourth proportional to 1,383,271.75, 1,908,929.60 and 779,659.75 is: 1,075,938.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,271.75 : 1,908,929.60 = 779,659.75 : x
  2. Step 2: Convert to fraction form
    1,383,271.75/1,908,929.60 = 779,659.75/x
  3. Step 3: Cross multiply
    1,383,271.75x = 1,908,929.60 × 779,659.75
  4. Step 4: Simplify right side
    1,383,271.75x = 1,488,315,574,703.60
  5. Step 5: Solve for x
    x = 1,488,315,574,703.60/1,383,271.75
  6. Step 6: Final answer
    x = 1,075,938.68

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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.