Home / 904,179.42-1,247,749.78-511,705.11

Finding the Fourth Proportional to 904,179.42, 1,247,749.78 and 511,705.11

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Solution

The fourth proportional to 904,179.42, 1,247,749.78 and 511,705.11 is: 706,142.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,179.42 : 1,247,749.78 = 511,705.11 : x
  2. Step 2: Convert to fraction form
    904,179.42/1,247,749.78 = 511,705.11/x
  3. Step 3: Cross multiply
    904,179.42x = 1,247,749.78 × 511,705.11
  4. Step 4: Simplify right side
    904,179.42x = 638,479,935,868.85
  5. Step 5: Solve for x
    x = 638,479,935,868.85/904,179.42
  6. Step 6: Final answer
    x = 706,142.96

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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.