Home / 1,400,131.40-2,098,814.70-689,577.80

Finding the Fourth Proportional to 1,400,131.40, 2,098,814.70 and 689,577.80

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Solution

The fourth proportional to 1,400,131.40, 2,098,814.70 and 689,577.80 is: 1,033,685.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,131.40 : 2,098,814.70 = 689,577.80 : x
  2. Step 2: Convert to fraction form
    1,400,131.40/2,098,814.70 = 689,577.80/x
  3. Step 3: Cross multiply
    1,400,131.40x = 2,098,814.70 × 689,577.80
  4. Step 4: Simplify right side
    1,400,131.40x = 1,447,296,023,433.66
  5. Step 5: Solve for x
    x = 1,447,296,023,433.66/1,400,131.40
  6. Step 6: Final answer
    x = 1,033,685.86

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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.