Home / 1,213,979.79-1,675,282.68-670,115.76

Finding the Fourth Proportional to 1,213,979.79, 1,675,282.68 and 670,115.76

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Solution

The fourth proportional to 1,213,979.79, 1,675,282.68 and 670,115.76 is: 924,754.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,979.79 : 1,675,282.68 = 670,115.76 : x
  2. Step 2: Convert to fraction form
    1,213,979.79/1,675,282.68 = 670,115.76/x
  3. Step 3: Cross multiply
    1,213,979.79x = 1,675,282.68 × 670,115.76
  4. Step 4: Simplify right side
    1,213,979.79x = 1,122,633,326,323.04
  5. Step 5: Solve for x
    x = 1,122,633,326,323.04/1,213,979.79
  6. Step 6: Final answer
    x = 924,754.54

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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.