Home / 804,999.80-1,207,499.70-724,820.60

Finding the Fourth Proportional to 804,999.80, 1,207,499.70 and 724,820.60

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Solution

The fourth proportional to 804,999.80, 1,207,499.70 and 724,820.60 is: 1,087,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,999.80 : 1,207,499.70 = 724,820.60 : x
  2. Step 2: Convert to fraction form
    804,999.80/1,207,499.70 = 724,820.60/x
  3. Step 3: Cross multiply
    804,999.80x = 1,207,499.70 × 724,820.60
  4. Step 4: Simplify right side
    804,999.80x = 875,220,657,053.82
  5. Step 5: Solve for x
    x = 875,220,657,053.82/804,999.80
  6. Step 6: Final answer
    x = 1,087,230.90

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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.