Home / 919,123.20-1,375,963.20-683,510.40

Finding the Fourth Proportional to 919,123.20, 1,375,963.20 and 683,510.40

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Solution

The fourth proportional to 919,123.20, 1,375,963.20 and 683,510.40 is: 1,023,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,123.20 : 1,375,963.20 = 683,510.40 : x
  2. Step 2: Convert to fraction form
    919,123.20/1,375,963.20 = 683,510.40/x
  3. Step 3: Cross multiply
    919,123.20x = 1,375,963.20 × 683,510.40
  4. Step 4: Simplify right side
    919,123.20x = 940,485,157,217.28
  5. Step 5: Solve for x
    x = 940,485,157,217.28/919,123.20
  6. Step 6: Final answer
    x = 1,023,241.67

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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.