Home / 685,835.90-1,030,334.96-657,492.86

Finding the Fourth Proportional to 685,835.90, 1,030,334.96 and 657,492.86

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Solution

The fourth proportional to 685,835.90, 1,030,334.96 and 657,492.86 is: 987,755.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,835.90 : 1,030,334.96 = 657,492.86 : x
  2. Step 2: Convert to fraction form
    685,835.90/1,030,334.96 = 657,492.86/x
  3. Step 3: Cross multiply
    685,835.90x = 1,030,334.96 × 657,492.86
  4. Step 4: Simplify right side
    685,835.90x = 677,437,876,100.44
  5. Step 5: Solve for x
    x = 677,437,876,100.44/685,835.90
  6. Step 6: Final answer
    x = 987,755.06

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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.