Home / 1,385,455.35-2,078,300.88-486,819.48

Finding the Fourth Proportional to 1,385,455.35, 2,078,300.88 and 486,819.48

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Solution

The fourth proportional to 1,385,455.35, 2,078,300.88 and 486,819.48 is: 730,270.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,455.35 : 2,078,300.88 = 486,819.48 : x
  2. Step 2: Convert to fraction form
    1,385,455.35/2,078,300.88 = 486,819.48/x
  3. Step 3: Cross multiply
    1,385,455.35x = 2,078,300.88 × 486,819.48
  4. Step 4: Simplify right side
    1,385,455.35x = 1,011,757,353,685.14
  5. Step 5: Solve for x
    x = 1,011,757,353,685.14/1,385,455.35
  6. Step 6: Final answer
    x = 730,270.63

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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.