Home / 1,224,261.08-1,689,478.78-680,379.64

Finding the Fourth Proportional to 1,224,261.08, 1,689,478.78 and 680,379.64

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Solution

The fourth proportional to 1,224,261.08, 1,689,478.78 and 680,379.64 is: 938,923.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,261.08 : 1,689,478.78 = 680,379.64 : x
  2. Step 2: Convert to fraction form
    1,224,261.08/1,689,478.78 = 680,379.64/x
  3. Step 3: Cross multiply
    1,224,261.08x = 1,689,478.78 × 680,379.64
  4. Step 4: Simplify right side
    1,224,261.08x = 1,149,486,964,124.04
  5. Step 5: Solve for x
    x = 1,149,486,964,124.04/1,224,261.08
  6. Step 6: Final answer
    x = 938,923.06

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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.