Home / 511,938.20-766,928.10-275,202.20

Finding the Fourth Proportional to 511,938.20, 766,928.10 and 275,202.20

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Solution

The fourth proportional to 511,938.20, 766,928.10 and 275,202.20 is: 412,276.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,938.20 : 766,928.10 = 275,202.20 : x
  2. Step 2: Convert to fraction form
    511,938.20/766,928.10 = 275,202.20/x
  3. Step 3: Cross multiply
    511,938.20x = 766,928.10 × 275,202.20
  4. Step 4: Simplify right side
    511,938.20x = 211,060,300,361.82
  5. Step 5: Solve for x
    x = 211,060,300,361.82/511,938.20
  6. Step 6: Final answer
    x = 412,276.91

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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.