Home / 785,745.76-1,178,245.22-359,156.56

Finding the Fourth Proportional to 785,745.76, 1,178,245.22 and 359,156.56

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Solution

The fourth proportional to 785,745.76, 1,178,245.22 and 359,156.56 is: 538,564.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,745.76 : 1,178,245.22 = 359,156.56 : x
  2. Step 2: Convert to fraction form
    785,745.76/1,178,245.22 = 359,156.56/x
  3. Step 3: Cross multiply
    785,745.76x = 1,178,245.22 × 359,156.56
  4. Step 4: Simplify right side
    785,745.76x = 423,174,500,051.64
  5. Step 5: Solve for x
    x = 423,174,500,051.64/785,745.76
  6. Step 6: Final answer
    x = 538,564.15

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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.