Home / 3,280,043.30-4,920,756.15-1,385,809.70

Finding the Fourth Proportional to 3,280,043.30, 4,920,756.15 and 1,385,809.70

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Solution

The fourth proportional to 3,280,043.30, 4,920,756.15 and 1,385,809.70 is: 2,079,006.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,043.30 : 4,920,756.15 = 1,385,809.70 : x
  2. Step 2: Convert to fraction form
    3,280,043.30/4,920,756.15 = 1,385,809.70/x
  3. Step 3: Cross multiply
    3,280,043.30x = 4,920,756.15 × 1,385,809.70
  4. Step 4: Simplify right side
    3,280,043.30x = 6,819,231,604,004.66
  5. Step 5: Solve for x
    x = 6,819,231,604,004.66/3,280,043.30
  6. Step 6: Final answer
    x = 2,079,006.58

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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.