Home / 764,554.32-1,146,189.96-338,021.28

Finding the Fourth Proportional to 764,554.32, 1,146,189.96 and 338,021.28

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Solution

The fourth proportional to 764,554.32, 1,146,189.96 and 338,021.28 is: 506,748.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,554.32 : 1,146,189.96 = 338,021.28 : x
  2. Step 2: Convert to fraction form
    764,554.32/1,146,189.96 = 338,021.28/x
  3. Step 3: Cross multiply
    764,554.32x = 1,146,189.96 × 338,021.28
  4. Step 4: Simplify right side
    764,554.32x = 387,436,597,402.35
  5. Step 5: Solve for x
    x = 387,436,597,402.35/764,554.32
  6. Step 6: Final answer
    x = 506,748.29

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1.5x scale

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.