Home / 721,909.06-1,083,928.03-402,684.62

Finding the Fourth Proportional to 721,909.06, 1,083,928.03 and 402,684.62

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Solution

The fourth proportional to 721,909.06, 1,083,928.03 and 402,684.62 is: 604,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,909.06 : 1,083,928.03 = 402,684.62 : x
  2. Step 2: Convert to fraction form
    721,909.06/1,083,928.03 = 402,684.62/x
  3. Step 3: Cross multiply
    721,909.06x = 1,083,928.03 × 402,684.62
  4. Step 4: Simplify right side
    721,909.06x = 436,481,140,441.55
  5. Step 5: Solve for x
    x = 436,481,140,441.55/721,909.06
  6. Step 6: Final answer
    x = 604,620.67

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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.