Home / 637,268.55-878,982.62-419,407.80

Finding the Fourth Proportional to 637,268.55, 878,982.62 and 419,407.80

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Solution

The fourth proportional to 637,268.55, 878,982.62 and 419,407.80 is: 578,487.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,268.55 : 878,982.62 = 419,407.80 : x
  2. Step 2: Convert to fraction form
    637,268.55/878,982.62 = 419,407.80/x
  3. Step 3: Cross multiply
    637,268.55x = 878,982.62 × 419,407.80
  4. Step 4: Simplify right side
    637,268.55x = 368,652,166,892.44
  5. Step 5: Solve for x
    x = 368,652,166,892.44/637,268.55
  6. Step 6: Final answer
    x = 578,487.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.