Home / 983,997.96-1,475,010.36-343,804.80

Finding the Fourth Proportional to 983,997.96, 1,475,010.36 and 343,804.80

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Solution

The fourth proportional to 983,997.96, 1,475,010.36 and 343,804.80 is: 515,362.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,997.96 : 1,475,010.36 = 343,804.80 : x
  2. Step 2: Convert to fraction form
    983,997.96/1,475,010.36 = 343,804.80/x
  3. Step 3: Cross multiply
    983,997.96x = 1,475,010.36 × 343,804.80
  4. Step 4: Simplify right side
    983,997.96x = 507,115,641,817.73
  5. Step 5: Solve for x
    x = 507,115,641,817.73/983,997.96
  6. Step 6: Final answer
    x = 515,362.49

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Double scale
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Similar ratio
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1.5x scale

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.