Home / 2,912,759.20-4,369,138.80-1,904,989.60

Finding the Fourth Proportional to 2,912,759.20, 4,369,138.80 and 1,904,989.60

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Solution

The fourth proportional to 2,912,759.20, 4,369,138.80 and 1,904,989.60 is: 2,857,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,759.20 : 4,369,138.80 = 1,904,989.60 : x
  2. Step 2: Convert to fraction form
    2,912,759.20/4,369,138.80 = 1,904,989.60/x
  3. Step 3: Cross multiply
    2,912,759.20x = 4,369,138.80 × 1,904,989.60
  4. Step 4: Simplify right side
    2,912,759.20x = 8,323,163,974,956.48
  5. Step 5: Solve for x
    x = 8,323,163,974,956.48/2,912,759.20
  6. Step 6: Final answer
    x = 2,857,484.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.