Home / 412,688.40-569,628.09-243,020.94

Finding the Fourth Proportional to 412,688.40, 569,628.09 and 243,020.94

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Solution

The fourth proportional to 412,688.40, 569,628.09 and 243,020.94 is: 335,438.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,688.40 : 569,628.09 = 243,020.94 : x
  2. Step 2: Convert to fraction form
    412,688.40/569,628.09 = 243,020.94/x
  3. Step 3: Cross multiply
    412,688.40x = 569,628.09 × 243,020.94
  4. Step 4: Simplify right side
    412,688.40x = 138,431,553,882.21
  5. Step 5: Solve for x
    x = 138,431,553,882.21/412,688.40
  6. Step 6: Final answer
    x = 335,438.44

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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.