Home / 703,539.90-1,056,721.91-419,784.09

Finding the Fourth Proportional to 703,539.90, 1,056,721.91 and 419,784.09

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Solution

The fourth proportional to 703,539.90, 1,056,721.91 and 419,784.09 is: 630,518.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,539.90 : 1,056,721.91 = 419,784.09 : x
  2. Step 2: Convert to fraction form
    703,539.90/1,056,721.91 = 419,784.09/x
  3. Step 3: Cross multiply
    703,539.90x = 1,056,721.91 × 419,784.09
  4. Step 4: Simplify right side
    703,539.90x = 443,595,045,372.41
  5. Step 5: Solve for x
    x = 443,595,045,372.41/703,539.90
  6. Step 6: Final answer
    x = 630,518.67

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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.