Home / 1,280,636.13-1,767,283.33-699,870.81

Finding the Fourth Proportional to 1,280,636.13, 1,767,283.33 and 699,870.81

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Solution

The fourth proportional to 1,280,636.13, 1,767,283.33 and 699,870.81 is: 965,824.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,636.13 : 1,767,283.33 = 699,870.81 : x
  2. Step 2: Convert to fraction form
    1,280,636.13/1,767,283.33 = 699,870.81/x
  3. Step 3: Cross multiply
    1,280,636.13x = 1,767,283.33 × 699,870.81
  4. Step 4: Simplify right side
    1,280,636.13x = 1,236,870,021,856.49
  5. Step 5: Solve for x
    x = 1,236,870,021,856.49/1,280,636.13
  6. Step 6: Final answer
    x = 965,824.71

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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.