Home / 511,649.20-767,634.18-212,271.04

Finding the Fourth Proportional to 511,649.20, 767,634.18 and 212,271.04

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Solution

The fourth proportional to 511,649.20, 767,634.18 and 212,271.04 is: 318,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,649.20 : 767,634.18 = 212,271.04 : x
  2. Step 2: Convert to fraction form
    511,649.20/767,634.18 = 212,271.04/x
  3. Step 3: Cross multiply
    511,649.20x = 767,634.18 × 212,271.04
  4. Step 4: Simplify right side
    511,649.20x = 162,946,505,728.15
  5. Step 5: Solve for x
    x = 162,946,505,728.15/511,649.20
  6. Step 6: Final answer
    x = 318,473.10

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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.