Home / 2,987,555.40-4,482,645.30-1,389,295.80

Finding the Fourth Proportional to 2,987,555.40, 4,482,645.30 and 1,389,295.80

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Solution

The fourth proportional to 2,987,555.40, 4,482,645.30 and 1,389,295.80 is: 2,084,553.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,555.40 : 4,482,645.30 = 1,389,295.80 : x
  2. Step 2: Convert to fraction form
    2,987,555.40/4,482,645.30 = 1,389,295.80/x
  3. Step 3: Cross multiply
    2,987,555.40x = 4,482,645.30 × 1,389,295.80
  4. Step 4: Simplify right side
    2,987,555.40x = 6,227,720,288,179.74
  5. Step 5: Solve for x
    x = 6,227,720,288,179.74/2,987,555.40
  6. Step 6: Final answer
    x = 2,084,553.91

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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.