Home / 1,379,911.77-1,904,263.70-768,054.78

Finding the Fourth Proportional to 1,379,911.77, 1,904,263.70 and 768,054.78

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Solution

The fourth proportional to 1,379,911.77, 1,904,263.70 and 768,054.78 is: 1,059,907.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,911.77 : 1,904,263.70 = 768,054.78 : x
  2. Step 2: Convert to fraction form
    1,379,911.77/1,904,263.70 = 768,054.78/x
  3. Step 3: Cross multiply
    1,379,911.77x = 1,904,263.70 × 768,054.78
  4. Step 4: Simplify right side
    1,379,911.77x = 1,462,578,833,325.21
  5. Step 5: Solve for x
    x = 1,462,578,833,325.21/1,379,911.77
  6. Step 6: Final answer
    x = 1,059,907.50

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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.