Home / 1,331,308.20-1,996,962.30-384,709.80

Finding the Fourth Proportional to 1,331,308.20, 1,996,962.30 and 384,709.80

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Solution

The fourth proportional to 1,331,308.20, 1,996,962.30 and 384,709.80 is: 577,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,308.20 : 1,996,962.30 = 384,709.80 : x
  2. Step 2: Convert to fraction form
    1,331,308.20/1,996,962.30 = 384,709.80/x
  3. Step 3: Cross multiply
    1,331,308.20x = 1,996,962.30 × 384,709.80
  4. Step 4: Simplify right side
    1,331,308.20x = 768,250,967,040.54
  5. Step 5: Solve for x
    x = 768,250,967,040.54/1,331,308.20
  6. Step 6: Final answer
    x = 577,064.70

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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.