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Finding the Fourth Proportional to 986,305.30, 1,479,348.60 and 808,502.20

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Solution

The fourth proportional to 986,305.30, 1,479,348.60 and 808,502.20 is: 1,212,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,305.30 : 1,479,348.60 = 808,502.20 : x
  2. Step 2: Convert to fraction form
    986,305.30/1,479,348.60 = 808,502.20/x
  3. Step 3: Cross multiply
    986,305.30x = 1,479,348.60 × 808,502.20
  4. Step 4: Simplify right side
    986,305.30x = 1,196,056,597,666.92
  5. Step 5: Solve for x
    x = 1,196,056,597,666.92/986,305.30
  6. Step 6: Final answer
    x = 1,212,663.66

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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.