Home / 681,603.40-1,022,405.10-345,680.20

Finding the Fourth Proportional to 681,603.40, 1,022,405.10 and 345,680.20

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Solution

The fourth proportional to 681,603.40, 1,022,405.10 and 345,680.20 is: 518,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,603.40 : 1,022,405.10 = 345,680.20 : x
  2. Step 2: Convert to fraction form
    681,603.40/1,022,405.10 = 345,680.20/x
  3. Step 3: Cross multiply
    681,603.40x = 1,022,405.10 × 345,680.20
  4. Step 4: Simplify right side
    681,603.40x = 353,425,199,449.02
  5. Step 5: Solve for x
    x = 353,425,199,449.02/681,603.40
  6. Step 6: Final answer
    x = 518,520.30

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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.