Home / 828,305.10-1,242,457.65-728,577.90

Finding the Fourth Proportional to 828,305.10, 1,242,457.65 and 728,577.90

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Solution

The fourth proportional to 828,305.10, 1,242,457.65 and 728,577.90 is: 1,092,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,305.10 : 1,242,457.65 = 728,577.90 : x
  2. Step 2: Convert to fraction form
    828,305.10/1,242,457.65 = 728,577.90/x
  3. Step 3: Cross multiply
    828,305.10x = 1,242,457.65 × 728,577.90
  4. Step 4: Simplify right side
    828,305.10x = 905,227,185,475.94
  5. Step 5: Solve for x
    x = 905,227,185,475.94/828,305.10
  6. Step 6: Final answer
    x = 1,092,866.85

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Similar ratio
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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.