Home / 818,399.79-1,129,347.05-450,804.95

Finding the Fourth Proportional to 818,399.79, 1,129,347.05 and 450,804.95

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Solution

The fourth proportional to 818,399.79, 1,129,347.05 and 450,804.95 is: 622,086.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,399.79 : 1,129,347.05 = 450,804.95 : x
  2. Step 2: Convert to fraction form
    818,399.79/1,129,347.05 = 450,804.95/x
  3. Step 3: Cross multiply
    818,399.79x = 1,129,347.05 × 450,804.95
  4. Step 4: Simplify right side
    818,399.79x = 509,115,232,507.14
  5. Step 5: Solve for x
    x = 509,115,232,507.14/818,399.79
  6. Step 6: Final answer
    x = 622,086.22

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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.