Home / 1,319,124-1,978,181.59-719,764.77

Finding the Fourth Proportional to 1,319,124, 1,978,181.59 and 719,764.77

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Solution

The fourth proportional to 1,319,124, 1,978,181.59 and 719,764.77 is: 1,079,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,124 : 1,978,181.59 = 719,764.77 : x
  2. Step 2: Convert to fraction form
    1,319,124/1,978,181.59 = 719,764.77/x
  3. Step 3: Cross multiply
    1,319,124x = 1,978,181.59 × 719,764.77
  4. Step 4: Simplify right side
    1,319,124x = 1,423,825,417,144.58
  5. Step 5: Solve for x
    x = 1,423,825,417,144.58/1,319,124
  6. Step 6: Final answer
    x = 1,079,371.93

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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.