Home / 703,520.81-1,056,693.38-419,765.12

Finding the Fourth Proportional to 703,520.81, 1,056,693.38 and 419,765.12

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Solution

The fourth proportional to 703,520.81, 1,056,693.38 and 419,765.12 is: 630,490.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,520.81 : 1,056,693.38 = 419,765.12 : x
  2. Step 2: Convert to fraction form
    703,520.81/1,056,693.38 = 419,765.12/x
  3. Step 3: Cross multiply
    703,520.81x = 1,056,693.38 × 419,765.12
  4. Step 4: Simplify right side
    703,520.81x = 443,563,016,076.61
  5. Step 5: Solve for x
    x = 443,563,016,076.61/703,520.81
  6. Step 6: Final answer
    x = 630,490.26

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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.