Home / 688,160.75-1,031,672.81-303,635.86

Finding the Fourth Proportional to 688,160.75, 1,031,672.81 and 303,635.86

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Solution

The fourth proportional to 688,160.75, 1,031,672.81 and 303,635.86 is: 455,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,160.75 : 1,031,672.81 = 303,635.86 : x
  2. Step 2: Convert to fraction form
    688,160.75/1,031,672.81 = 303,635.86/x
  3. Step 3: Cross multiply
    688,160.75x = 1,031,672.81 × 303,635.86
  4. Step 4: Simplify right side
    688,160.75x = 313,252,859,082.87
  5. Step 5: Solve for x
    x = 313,252,859,082.87/688,160.75
  6. Step 6: Final answer
    x = 455,203.03

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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.