Home / 1,279,155.36-1,918,398.48-380,355.04

Finding the Fourth Proportional to 1,279,155.36, 1,918,398.48 and 380,355.04

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Solution

The fourth proportional to 1,279,155.36, 1,918,398.48 and 380,355.04 is: 570,433.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,155.36 : 1,918,398.48 = 380,355.04 : x
  2. Step 2: Convert to fraction form
    1,279,155.36/1,918,398.48 = 380,355.04/x
  3. Step 3: Cross multiply
    1,279,155.36x = 1,918,398.48 × 380,355.04
  4. Step 4: Simplify right side
    1,279,155.36x = 729,672,530,596.34
  5. Step 5: Solve for x
    x = 729,672,530,596.34/1,279,155.36
  6. Step 6: Final answer
    x = 570,433.08

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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.