Home / 845,816.90-1,268,867.51-419,373.77

Finding the Fourth Proportional to 845,816.90, 1,268,867.51 and 419,373.77

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Solution

The fourth proportional to 845,816.90, 1,268,867.51 and 419,373.77 is: 629,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,816.90 : 1,268,867.51 = 419,373.77 : x
  2. Step 2: Convert to fraction form
    845,816.90/1,268,867.51 = 419,373.77/x
  3. Step 3: Cross multiply
    845,816.90x = 1,268,867.51 × 419,373.77
  4. Step 4: Simplify right side
    845,816.90x = 532,129,742,858.01
  5. Step 5: Solve for x
    x = 532,129,742,858.01/845,816.90
  6. Step 6: Final answer
    x = 629,131.13

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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.