Home / 1,289,947.92-1,780,148.04-709,196.22

Finding the Fourth Proportional to 1,289,947.92, 1,780,148.04 and 709,196.22

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Solution

The fourth proportional to 1,289,947.92, 1,780,148.04 and 709,196.22 is: 978,701.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,947.92 : 1,780,148.04 = 709,196.22 : x
  2. Step 2: Convert to fraction form
    1,289,947.92/1,780,148.04 = 709,196.22/x
  3. Step 3: Cross multiply
    1,289,947.92x = 1,780,148.04 × 709,196.22
  4. Step 4: Simplify right side
    1,289,947.92x = 1,262,474,261,008.41
  5. Step 5: Solve for x
    x = 1,262,474,261,008.41/1,289,947.92
  6. Step 6: Final answer
    x = 978,701.73

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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.