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Finding the Fourth Proportional to 1,330,359, 1,995,555.78 and 443,895

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Solution

The fourth proportional to 1,330,359, 1,995,555.78 and 443,895 is: 665,848.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,359 : 1,995,555.78 = 443,895 : x
  2. Step 2: Convert to fraction form
    1,330,359/1,995,555.78 = 443,895/x
  3. Step 3: Cross multiply
    1,330,359x = 1,995,555.78 × 443,895
  4. Step 4: Simplify right side
    1,330,359x = 885,817,232,963.10
  5. Step 5: Solve for x
    x = 885,817,232,963.10/1,330,359
  6. Step 6: Final answer
    x = 665,848.27

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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.