Home / 1,383,187.13-1,908,856.56-779,575.13

Finding the Fourth Proportional to 1,383,187.13, 1,908,856.56 and 779,575.13

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Solution

The fourth proportional to 1,383,187.13, 1,908,856.56 and 779,575.13 is: 1,075,846.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,187.13 : 1,908,856.56 = 779,575.13 : x
  2. Step 2: Convert to fraction form
    1,383,187.13/1,908,856.56 = 779,575.13/x
  3. Step 3: Cross multiply
    1,383,187.13x = 1,908,856.56 × 779,575.13
  4. Step 4: Simplify right side
    1,383,187.13x = 1,488,097,091,369.07
  5. Step 5: Solve for x
    x = 1,488,097,091,369.07/1,383,187.13
  6. Step 6: Final answer
    x = 1,075,846.55

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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.