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Finding the Fourth Proportional to 1,330,354, 1,995,548.28 and 443,890

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Solution

The fourth proportional to 1,330,354, 1,995,548.28 and 443,890 is: 665,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,354 : 1,995,548.28 = 443,890 : x
  2. Step 2: Convert to fraction form
    1,330,354/1,995,548.28 = 443,890/x
  3. Step 3: Cross multiply
    1,330,354x = 1,995,548.28 × 443,890
  4. Step 4: Simplify right side
    1,330,354x = 885,803,926,009.20
  5. Step 5: Solve for x
    x = 885,803,926,009.20/1,330,354
  6. Step 6: Final answer
    x = 665,840.77

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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.