Home / 1,139,194.76-1,571,968.50-629,814.92

Finding the Fourth Proportional to 1,139,194.76, 1,571,968.50 and 629,814.92

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Solution

The fourth proportional to 1,139,194.76, 1,571,968.50 and 629,814.92 is: 869,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,194.76 : 1,571,968.50 = 629,814.92 : x
  2. Step 2: Convert to fraction form
    1,139,194.76/1,571,968.50 = 629,814.92/x
  3. Step 3: Cross multiply
    1,139,194.76x = 1,571,968.50 × 629,814.92
  4. Step 4: Simplify right side
    1,139,194.76x = 990,049,215,070.02
  5. Step 5: Solve for x
    x = 990,049,215,070.02/1,139,194.76
  6. Step 6: Final answer
    x = 869,078.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.