Home / 669,061.78-923,318.98-378,673.34

Finding the Fourth Proportional to 669,061.78, 923,318.98 and 378,673.34

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Solution

The fourth proportional to 669,061.78, 923,318.98 and 378,673.34 is: 522,576.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,061.78 : 923,318.98 = 378,673.34 : x
  2. Step 2: Convert to fraction form
    669,061.78/923,318.98 = 378,673.34/x
  3. Step 3: Cross multiply
    669,061.78x = 923,318.98 × 378,673.34
  4. Step 4: Simplify right side
    669,061.78x = 349,636,276,478.72
  5. Step 5: Solve for x
    x = 349,636,276,478.72/669,061.78
  6. Step 6: Final answer
    x = 522,576.97

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1.5x scale

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.