Home / 3,178,212.95-4,385,912.09-1,727,908.35

Finding the Fourth Proportional to 3,178,212.95, 4,385,912.09 and 1,727,908.35

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Solution

The fourth proportional to 3,178,212.95, 4,385,912.09 and 1,727,908.35 is: 2,384,501.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,212.95 : 4,385,912.09 = 1,727,908.35 : x
  2. Step 2: Convert to fraction form
    3,178,212.95/4,385,912.09 = 1,727,908.35/x
  3. Step 3: Cross multiply
    3,178,212.95x = 4,385,912.09 × 1,727,908.35
  4. Step 4: Simplify right side
    3,178,212.95x = 7,578,454,114,037.41
  5. Step 5: Solve for x
    x = 7,578,454,114,037.41/3,178,212.95
  6. Step 6: Final answer
    x = 2,384,501.68

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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.