Home / 1,280,660.32-1,767,379.26-736,878.70

Finding the Fourth Proportional to 1,280,660.32, 1,767,379.26 and 736,878.70

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Solution

The fourth proportional to 1,280,660.32, 1,767,379.26 and 736,878.70 is: 1,016,931.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,660.32 : 1,767,379.26 = 736,878.70 : x
  2. Step 2: Convert to fraction form
    1,280,660.32/1,767,379.26 = 736,878.70/x
  3. Step 3: Cross multiply
    1,280,660.32x = 1,767,379.26 × 736,878.70
  4. Step 4: Simplify right side
    1,280,660.32x = 1,302,344,131,515.76
  5. Step 5: Solve for x
    x = 1,302,344,131,515.76/1,280,660.32
  6. Step 6: Final answer
    x = 1,016,931.74

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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.