Home / 845,830.30-1,268,887.67-419,387.17

Finding the Fourth Proportional to 845,830.30, 1,268,887.67 and 419,387.17

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Solution

The fourth proportional to 845,830.30, 1,268,887.67 and 419,387.17 is: 629,151.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,830.30 : 1,268,887.67 = 419,387.17 : x
  2. Step 2: Convert to fraction form
    845,830.30/1,268,887.67 = 419,387.17/x
  3. Step 3: Cross multiply
    845,830.30x = 1,268,887.67 × 419,387.17
  4. Step 4: Simplify right side
    845,830.30x = 532,155,208,969.19
  5. Step 5: Solve for x
    x = 532,155,208,969.19/845,830.30
  6. Step 6: Final answer
    x = 629,151.27

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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.