Home / 709,277.80-1,064,694.30-443,338.60

Finding the Fourth Proportional to 709,277.80, 1,064,694.30 and 443,338.60

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Solution

The fourth proportional to 709,277.80, 1,064,694.30 and 443,338.60 is: 665,493.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,277.80 : 1,064,694.30 = 443,338.60 : x
  2. Step 2: Convert to fraction form
    709,277.80/1,064,694.30 = 443,338.60/x
  3. Step 3: Cross multiply
    709,277.80x = 1,064,694.30 × 443,338.60
  4. Step 4: Simplify right side
    709,277.80x = 472,020,080,389.98
  5. Step 5: Solve for x
    x = 472,020,080,389.98/709,277.80
  6. Step 6: Final answer
    x = 665,493.94

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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.