Home / 1,330,819.20-1,996,520.40-657,223.20

Finding the Fourth Proportional to 1,330,819.20, 1,996,520.40 and 657,223.20

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Solution

The fourth proportional to 1,330,819.20, 1,996,520.40 and 657,223.20 is: 985,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,819.20 : 1,996,520.40 = 657,223.20 : x
  2. Step 2: Convert to fraction form
    1,330,819.20/1,996,520.40 = 657,223.20/x
  3. Step 3: Cross multiply
    1,330,819.20x = 1,996,520.40 × 657,223.20
  4. Step 4: Simplify right side
    1,330,819.20x = 1,312,159,526,153.28
  5. Step 5: Solve for x
    x = 1,312,159,526,153.28/1,330,819.20
  6. Step 6: Final answer
    x = 985,978.81

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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.