Home / 947,361.96-1,307,359.85-511,779.47

Finding the Fourth Proportional to 947,361.96, 1,307,359.85 and 511,779.47

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Solution

The fourth proportional to 947,361.96, 1,307,359.85 and 511,779.47 is: 706,255.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,361.96 : 1,307,359.85 = 511,779.47 : x
  2. Step 2: Convert to fraction form
    947,361.96/1,307,359.85 = 511,779.47/x
  3. Step 3: Cross multiply
    947,361.96x = 1,307,359.85 × 511,779.47
  4. Step 4: Simplify right side
    947,361.96x = 669,079,922,036.58
  5. Step 5: Solve for x
    x = 669,079,922,036.58/947,361.96
  6. Step 6: Final answer
    x = 706,255.85

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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.