Home / 1,331,255.70-1,996,883.55-384,657.30

Finding the Fourth Proportional to 1,331,255.70, 1,996,883.55 and 384,657.30

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Solution

The fourth proportional to 1,331,255.70, 1,996,883.55 and 384,657.30 is: 576,985.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,255.70 : 1,996,883.55 = 384,657.30 : x
  2. Step 2: Convert to fraction form
    1,331,255.70/1,996,883.55 = 384,657.30/x
  3. Step 3: Cross multiply
    1,331,255.70x = 1,996,883.55 × 384,657.30
  4. Step 4: Simplify right side
    1,331,255.70x = 768,115,834,757.42
  5. Step 5: Solve for x
    x = 768,115,834,757.42/1,331,255.70
  6. Step 6: Final answer
    x = 576,985.95

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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.