Home / 645,472.58-966,138.51-345,202.34

Finding the Fourth Proportional to 645,472.58, 966,138.51 and 345,202.34

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Solution

The fourth proportional to 645,472.58, 966,138.51 and 345,202.34 is: 516,696.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,472.58 : 966,138.51 = 345,202.34 : x
  2. Step 2: Convert to fraction form
    645,472.58/966,138.51 = 345,202.34/x
  3. Step 3: Cross multiply
    645,472.58x = 966,138.51 × 345,202.34
  4. Step 4: Simplify right side
    645,472.58x = 333,513,274,416.11
  5. Step 5: Solve for x
    x = 333,513,274,416.11/645,472.58
  6. Step 6: Final answer
    x = 516,696.27

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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.