Home / 681,106.10-1,022,643.30-513,800.60

Finding the Fourth Proportional to 681,106.10, 1,022,643.30 and 513,800.60

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Solution

The fourth proportional to 681,106.10, 1,022,643.30 and 513,800.60 is: 771,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,106.10 : 1,022,643.30 = 513,800.60 : x
  2. Step 2: Convert to fraction form
    681,106.10/1,022,643.30 = 513,800.60/x
  3. Step 3: Cross multiply
    681,106.10x = 1,022,643.30 × 513,800.60
  4. Step 4: Simplify right side
    681,106.10x = 525,434,741,125.98
  5. Step 5: Solve for x
    x = 525,434,741,125.98/681,106.10
  6. Step 6: Final answer
    x = 771,443.31

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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.