Home / 511,316.08-705,621.15-281,882.36

Finding the Fourth Proportional to 511,316.08, 705,621.15 and 281,882.36

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Solution

The fourth proportional to 511,316.08, 705,621.15 and 281,882.36 is: 389,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,316.08 : 705,621.15 = 281,882.36 : x
  2. Step 2: Convert to fraction form
    511,316.08/705,621.15 = 281,882.36/x
  3. Step 3: Cross multiply
    511,316.08x = 705,621.15 × 281,882.36
  4. Step 4: Simplify right side
    511,316.08x = 198,902,156,791.97
  5. Step 5: Solve for x
    x = 198,902,156,791.97/511,316.08
  6. Step 6: Final answer
    x = 389,000.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.