Home / 785,744.76-1,178,243.72-359,155.56

Finding the Fourth Proportional to 785,744.76, 1,178,243.72 and 359,155.56

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Solution

The fourth proportional to 785,744.76, 1,178,243.72 and 359,155.56 is: 538,562.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,744.76 : 1,178,243.72 = 359,155.56 : x
  2. Step 2: Convert to fraction form
    785,744.76/1,178,243.72 = 359,155.56/x
  3. Step 3: Cross multiply
    785,744.76x = 1,178,243.72 × 359,155.56
  4. Step 4: Simplify right side
    785,744.76x = 423,172,783,073.08
  5. Step 5: Solve for x
    x = 423,172,783,073.08/785,744.76
  6. Step 6: Final answer
    x = 538,562.65

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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.