Home / 915,137.28-1,372,820.76-275,341.37

Finding the Fourth Proportional to 915,137.28, 1,372,820.76 and 275,341.37

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Solution

The fourth proportional to 915,137.28, 1,372,820.76 and 275,341.37 is: 413,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,137.28 : 1,372,820.76 = 275,341.37 : x
  2. Step 2: Convert to fraction form
    915,137.28/1,372,820.76 = 275,341.37/x
  3. Step 3: Cross multiply
    915,137.28x = 1,372,820.76 × 275,341.37
  4. Step 4: Simplify right side
    915,137.28x = 377,994,341,958.74
  5. Step 5: Solve for x
    x = 377,994,341,958.74/915,137.28
  6. Step 6: Final answer
    x = 413,046.60

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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.