Home / 2,153,480.42-2,971,778.86-1,223,181.65

Finding the Fourth Proportional to 2,153,480.42, 2,971,778.86 and 1,223,181.65

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Solution

The fourth proportional to 2,153,480.42, 2,971,778.86 and 1,223,181.65 is: 1,687,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,480.42 : 2,971,778.86 = 1,223,181.65 : x
  2. Step 2: Convert to fraction form
    2,153,480.42/2,971,778.86 = 1,223,181.65/x
  3. Step 3: Cross multiply
    2,153,480.42x = 2,971,778.86 × 1,223,181.65
  4. Step 4: Simplify right side
    2,153,480.42x = 3,635,025,369,409.92
  5. Step 5: Solve for x
    x = 3,635,025,369,409.92/2,153,480.42
  6. Step 6: Final answer
    x = 1,687,976.98

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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.