Home / 669,139.68-923,293.58-378,749.82

Finding the Fourth Proportional to 669,139.68, 923,293.58 and 378,749.82

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Solution

The fourth proportional to 669,139.68, 923,293.58 and 378,749.82 is: 522,607.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,139.68 : 923,293.58 = 378,749.82 : x
  2. Step 2: Convert to fraction form
    669,139.68/923,293.58 = 378,749.82/x
  3. Step 3: Cross multiply
    669,139.68x = 923,293.58 × 378,749.82
  4. Step 4: Simplify right side
    669,139.68x = 349,697,277,232.16
  5. Step 5: Solve for x
    x = 349,697,277,232.16/669,139.68
  6. Step 6: Final answer
    x = 522,607.29

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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.