Home / 1,379,978.08-1,904,369.49-768,117.73

Finding the Fourth Proportional to 1,379,978.08, 1,904,369.49 and 768,117.73

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Solution

The fourth proportional to 1,379,978.08, 1,904,369.49 and 768,117.73 is: 1,060,002.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,978.08 : 1,904,369.49 = 768,117.73 : x
  2. Step 2: Convert to fraction form
    1,379,978.08/1,904,369.49 = 768,117.73/x
  3. Step 3: Cross multiply
    1,379,978.08x = 1,904,369.49 × 768,117.73
  4. Step 4: Simplify right side
    1,379,978.08x = 1,462,779,969,740.06
  5. Step 5: Solve for x
    x = 1,462,779,969,740.06/1,379,978.08
  6. Step 6: Final answer
    x = 1,060,002.32

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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.