Home / 511,311.20-766,966.80-262,479.20

Finding the Fourth Proportional to 511,311.20, 766,966.80 and 262,479.20

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Solution

The fourth proportional to 511,311.20, 766,966.80 and 262,479.20 is: 393,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,311.20 : 766,966.80 = 262,479.20 : x
  2. Step 2: Convert to fraction form
    511,311.20/766,966.80 = 262,479.20/x
  3. Step 3: Cross multiply
    511,311.20x = 766,966.80 × 262,479.20
  4. Step 4: Simplify right side
    511,311.20x = 201,312,832,090.56
  5. Step 5: Solve for x
    x = 201,312,832,090.56/511,311.20
  6. Step 6: Final answer
    x = 393,718.80

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Similar ratio
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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.