Home / 505,820.19-758,730.29-281,073.14

Finding the Fourth Proportional to 505,820.19, 758,730.29 and 281,073.14

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Solution

The fourth proportional to 505,820.19, 758,730.29 and 281,073.14 is: 421,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,820.19 : 758,730.29 = 281,073.14 : x
  2. Step 2: Convert to fraction form
    505,820.19/758,730.29 = 281,073.14/x
  3. Step 3: Cross multiply
    505,820.19x = 758,730.29 × 281,073.14
  4. Step 4: Simplify right side
    505,820.19x = 213,258,699,824.39
  5. Step 5: Solve for x
    x = 213,258,699,824.39/505,820.19
  6. Step 6: Final answer
    x = 421,609.70

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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.