Home / 920,373.20-1,380,756.92-521,202.64

Finding the Fourth Proportional to 920,373.20, 1,380,756.92 and 521,202.64

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Solution

The fourth proportional to 920,373.20, 1,380,756.92 and 521,202.64 is: 781,915.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,373.20 : 1,380,756.92 = 521,202.64 : x
  2. Step 2: Convert to fraction form
    920,373.20/1,380,756.92 = 521,202.64/x
  3. Step 3: Cross multiply
    920,373.20x = 1,380,756.92 × 521,202.64
  4. Step 4: Simplify right side
    920,373.20x = 719,654,151,902.27
  5. Step 5: Solve for x
    x = 719,654,151,902.27/920,373.20
  6. Step 6: Final answer
    x = 781,915.59

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1.5x scale

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.