Home / 674,928.10-931,635.33-388,562.32

Finding the Fourth Proportional to 674,928.10, 931,635.33 and 388,562.32

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Solution

The fourth proportional to 674,928.10, 931,635.33 and 388,562.32 is: 536,351.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,928.10 : 931,635.33 = 388,562.32 : x
  2. Step 2: Convert to fraction form
    674,928.10/931,635.33 = 388,562.32/x
  3. Step 3: Cross multiply
    674,928.10x = 931,635.33 × 388,562.32
  4. Step 4: Simplify right side
    674,928.10x = 361,998,380,560.59
  5. Step 5: Solve for x
    x = 361,998,380,560.59/674,928.10
  6. Step 6: Final answer
    x = 536,351.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.