Home / 788,557.20-1,182,187.80-339,622.80

Finding the Fourth Proportional to 788,557.20, 1,182,187.80 and 339,622.80

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Solution

The fourth proportional to 788,557.20, 1,182,187.80 and 339,622.80 is: 509,155.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,557.20 : 1,182,187.80 = 339,622.80 : x
  2. Step 2: Convert to fraction form
    788,557.20/1,182,187.80 = 339,622.80/x
  3. Step 3: Cross multiply
    788,557.20x = 1,182,187.80 × 339,622.80
  4. Step 4: Simplify right side
    788,557.20x = 401,497,930,761.84
  5. Step 5: Solve for x
    x = 401,497,930,761.84/788,557.20
  6. Step 6: Final answer
    x = 509,155.11

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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.