Home / 785,990.21-1,179,277.27-545,977.67

Finding the Fourth Proportional to 785,990.21, 1,179,277.27 and 545,977.67

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Solution

The fourth proportional to 785,990.21, 1,179,277.27 and 545,977.67 is: 819,169.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,990.21 : 1,179,277.27 = 545,977.67 : x
  2. Step 2: Convert to fraction form
    785,990.21/1,179,277.27 = 545,977.67/x
  3. Step 3: Cross multiply
    785,990.21x = 1,179,277.27 × 545,977.67
  4. Step 4: Simplify right side
    785,990.21x = 643,859,057,741.81
  5. Step 5: Solve for x
    x = 643,859,057,741.81/785,990.21
  6. Step 6: Final answer
    x = 819,169.31

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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.