Home / 3,105,108.90-4,656,385.71-1,186,728.66

Finding the Fourth Proportional to 3,105,108.90, 4,656,385.71 and 1,186,728.66

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Solution

The fourth proportional to 3,105,108.90, 4,656,385.71 and 1,186,728.66 is: 1,779,604.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105,108.90 : 4,656,385.71 = 1,186,728.66 : x
  2. Step 2: Convert to fraction form
    3,105,108.90/4,656,385.71 = 1,186,728.66/x
  3. Step 3: Cross multiply
    3,105,108.90x = 4,656,385.71 × 1,186,728.66
  4. Step 4: Simplify right side
    3,105,108.90x = 5,525,866,374,071.45
  5. Step 5: Solve for x
    x = 5,525,866,374,071.45/3,105,108.90
  6. Step 6: Final answer
    x = 1,779,604.69

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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.