Home / 804,703.80-1,206,699.30-272,080.20

Finding the Fourth Proportional to 804,703.80, 1,206,699.30 and 272,080.20

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Solution

The fourth proportional to 804,703.80, 1,206,699.30 and 272,080.20 is: 407,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,703.80 : 1,206,699.30 = 272,080.20 : x
  2. Step 2: Convert to fraction form
    804,703.80/1,206,699.30 = 272,080.20/x
  3. Step 3: Cross multiply
    804,703.80x = 1,206,699.30 × 272,080.20
  4. Step 4: Simplify right side
    804,703.80x = 328,318,986,883.86
  5. Step 5: Solve for x
    x = 328,318,986,883.86/804,703.80
  6. Step 6: Final answer
    x = 407,999.80

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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.