Home / 1,278,678.31-1,764,567.38-705,718.48

Finding the Fourth Proportional to 1,278,678.31, 1,764,567.38 and 705,718.48

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Solution

The fourth proportional to 1,278,678.31, 1,764,567.38 and 705,718.48 is: 973,886.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,678.31 : 1,764,567.38 = 705,718.48 : x
  2. Step 2: Convert to fraction form
    1,278,678.31/1,764,567.38 = 705,718.48/x
  3. Step 3: Cross multiply
    1,278,678.31x = 1,764,567.38 × 705,718.48
  4. Step 4: Simplify right side
    1,278,678.31x = 1,245,287,806,624.06
  5. Step 5: Solve for x
    x = 1,245,287,806,624.06/1,278,678.31
  6. Step 6: Final answer
    x = 973,886.71

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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.