Home / 915,180.88-1,372,341.03-338,405.64

Finding the Fourth Proportional to 915,180.88, 1,372,341.03 and 338,405.64

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Solution

The fourth proportional to 915,180.88, 1,372,341.03 and 338,405.64 is: 507,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,180.88 : 1,372,341.03 = 338,405.64 : x
  2. Step 2: Convert to fraction form
    915,180.88/1,372,341.03 = 338,405.64/x
  3. Step 3: Cross multiply
    915,180.88x = 1,372,341.03 × 338,405.64
  4. Step 4: Simplify right side
    915,180.88x = 464,407,944,555.41
  5. Step 5: Solve for x
    x = 464,407,944,555.41/915,180.88
  6. Step 6: Final answer
    x = 507,449.35

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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.