Home / 669,906.40-1,003,693.20-433,127.20

Finding the Fourth Proportional to 669,906.40, 1,003,693.20 and 433,127.20

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Solution

The fourth proportional to 669,906.40, 1,003,693.20 and 433,127.20 is: 648,936.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,906.40 : 1,003,693.20 = 433,127.20 : x
  2. Step 2: Convert to fraction form
    669,906.40/1,003,693.20 = 433,127.20/x
  3. Step 3: Cross multiply
    669,906.40x = 1,003,693.20 × 433,127.20
  4. Step 4: Simplify right side
    669,906.40x = 434,726,825,375.04
  5. Step 5: Solve for x
    x = 434,726,825,375.04/669,906.40
  6. Step 6: Final answer
    x = 648,936.67

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1.5x scale

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.