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Finding the Fourth Proportional to 1,330,360, 1,995,557.28 and 443,896

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Solution

The fourth proportional to 1,330,360, 1,995,557.28 and 443,896 is: 665,849.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,360 : 1,995,557.28 = 443,896 : x
  2. Step 2: Convert to fraction form
    1,330,360/1,995,557.28 = 443,896/x
  3. Step 3: Cross multiply
    1,330,360x = 1,995,557.28 × 443,896
  4. Step 4: Simplify right side
    1,330,360x = 885,819,894,362.88
  5. Step 5: Solve for x
    x = 885,819,894,362.88/1,330,360
  6. Step 6: Final answer
    x = 665,849.77

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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.