Home / 511,176.60-705,428.46-281,742.24

Finding the Fourth Proportional to 511,176.60, 705,428.46 and 281,742.24

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Solution

The fourth proportional to 511,176.60, 705,428.46 and 281,742.24 is: 388,806.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,176.60 : 705,428.46 = 281,742.24 : x
  2. Step 2: Convert to fraction form
    511,176.60/705,428.46 = 281,742.24/x
  3. Step 3: Cross multiply
    511,176.60x = 705,428.46 × 281,742.24
  4. Step 4: Simplify right side
    511,176.60x = 198,748,994,480.15
  5. Step 5: Solve for x
    x = 198,748,994,480.15/511,176.60
  6. Step 6: Final answer
    x = 388,806.91

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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.