Home / 430,654.10-645,546.89-270,844.23

Finding the Fourth Proportional to 430,654.10, 645,546.89 and 270,844.23

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Solution

The fourth proportional to 430,654.10, 645,546.89 and 270,844.23 is: 405,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,654.10 : 645,546.89 = 270,844.23 : x
  2. Step 2: Convert to fraction form
    430,654.10/645,546.89 = 270,844.23/x
  3. Step 3: Cross multiply
    430,654.10x = 645,546.89 × 270,844.23
  4. Step 4: Simplify right side
    430,654.10x = 174,842,648,996.72
  5. Step 5: Solve for x
    x = 174,842,648,996.72/430,654.10
  6. Step 6: Final answer
    x = 405,993.23

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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.