Home / 1,240,666.20-1,860,999.30-1,126,504.80

Finding the Fourth Proportional to 1,240,666.20, 1,860,999.30 and 1,126,504.80

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Solution

The fourth proportional to 1,240,666.20, 1,860,999.30 and 1,126,504.80 is: 1,689,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,666.20 : 1,860,999.30 = 1,126,504.80 : x
  2. Step 2: Convert to fraction form
    1,240,666.20/1,860,999.30 = 1,126,504.80/x
  3. Step 3: Cross multiply
    1,240,666.20x = 1,860,999.30 × 1,126,504.80
  4. Step 4: Simplify right side
    1,240,666.20x = 2,096,424,644,246.64
  5. Step 5: Solve for x
    x = 2,096,424,644,246.64/1,240,666.20
  6. Step 6: Final answer
    x = 1,689,757.20

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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.