Home / 1,319,123-1,978,180.09-719,763.77

Finding the Fourth Proportional to 1,319,123, 1,978,180.09 and 719,763.77

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Solution

The fourth proportional to 1,319,123, 1,978,180.09 and 719,763.77 is: 1,079,370.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,123 : 1,978,180.09 = 719,763.77 : x
  2. Step 2: Convert to fraction form
    1,319,123/1,978,180.09 = 719,763.77/x
  3. Step 3: Cross multiply
    1,319,123x = 1,978,180.09 × 719,763.77
  4. Step 4: Simplify right side
    1,319,123x = 1,423,822,359,317.34
  5. Step 5: Solve for x
    x = 1,423,822,359,317.34/1,319,123
  6. Step 6: Final answer
    x = 1,079,370.43

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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.