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Finding the Fourth Proportional to 911,646.30, 1,367,469.45 and 806,670.30

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Solution

The fourth proportional to 911,646.30, 1,367,469.45 and 806,670.30 is: 1,210,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,646.30 : 1,367,469.45 = 806,670.30 : x
  2. Step 2: Convert to fraction form
    911,646.30/1,367,469.45 = 806,670.30/x
  3. Step 3: Cross multiply
    911,646.30x = 1,367,469.45 × 806,670.30
  4. Step 4: Simplify right side
    911,646.30x = 1,103,096,991,472.34
  5. Step 5: Solve for x
    x = 1,103,096,991,472.34/911,646.30
  6. Step 6: Final answer
    x = 1,210,005.45

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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.