Home / 3,120,409.20-4,671,282.60-1,857,586.80

Finding the Fourth Proportional to 3,120,409.20, 4,671,282.60 and 1,857,586.80

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Solution

The fourth proportional to 3,120,409.20, 4,671,282.60 and 1,857,586.80 is: 2,780,825.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,409.20 : 4,671,282.60 = 1,857,586.80 : x
  2. Step 2: Convert to fraction form
    3,120,409.20/4,671,282.60 = 1,857,586.80/x
  3. Step 3: Cross multiply
    3,120,409.20x = 4,671,282.60 × 1,857,586.80
  4. Step 4: Simplify right side
    3,120,409.20x = 8,677,312,896,829.68
  5. Step 5: Solve for x
    x = 8,677,312,896,829.68/3,120,409.20
  6. Step 6: Final answer
    x = 2,780,825.32

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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.