Home / 814,006.67-1,221,012.77-340,359.98

Finding the Fourth Proportional to 814,006.67, 1,221,012.77 and 340,359.98

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Solution

The fourth proportional to 814,006.67, 1,221,012.77 and 340,359.98 is: 510,541.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,006.67 : 1,221,012.77 = 340,359.98 : x
  2. Step 2: Convert to fraction form
    814,006.67/1,221,012.77 = 340,359.98/x
  3. Step 3: Cross multiply
    814,006.67x = 1,221,012.77 × 340,359.98
  4. Step 4: Simplify right side
    814,006.67x = 415,583,874,170.08
  5. Step 5: Solve for x
    x = 415,583,874,170.08/814,006.67
  6. Step 6: Final answer
    x = 510,541.12

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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.