Home / 1,188,672.36-1,783,080.54-478,700.52

Finding the Fourth Proportional to 1,188,672.36, 1,783,080.54 and 478,700.52

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Solution

The fourth proportional to 1,188,672.36, 1,783,080.54 and 478,700.52 is: 718,079.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,672.36 : 1,783,080.54 = 478,700.52 : x
  2. Step 2: Convert to fraction form
    1,188,672.36/1,783,080.54 = 478,700.52/x
  3. Step 3: Cross multiply
    1,188,672.36x = 1,783,080.54 × 478,700.52
  4. Step 4: Simplify right side
    1,188,672.36x = 853,561,581,699.88
  5. Step 5: Solve for x
    x = 853,561,581,699.88/1,188,672.36
  6. Step 6: Final answer
    x = 718,079.78

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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.