Home / 3,173,145.60-4,378,915.20-1,722,812.40

Finding the Fourth Proportional to 3,173,145.60, 4,378,915.20 and 1,722,812.40

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Solution

The fourth proportional to 3,173,145.60, 4,378,915.20 and 1,722,812.40 is: 2,377,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173,145.60 : 4,378,915.20 = 1,722,812.40 : x
  2. Step 2: Convert to fraction form
    3,173,145.60/4,378,915.20 = 1,722,812.40/x
  3. Step 3: Cross multiply
    3,173,145.60x = 4,378,915.20 × 1,722,812.40
  4. Step 4: Simplify right side
    3,173,145.60x = 7,544,049,405,108.48
  5. Step 5: Solve for x
    x = 7,544,049,405,108.48/3,173,145.60
  6. Step 6: Final answer
    x = 2,377,467.14

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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.