Home / 681,108.10-1,020,087.44-657,488.50

Finding the Fourth Proportional to 681,108.10, 1,020,087.44 and 657,488.50

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Solution

The fourth proportional to 681,108.10, 1,020,087.44 and 657,488.50 is: 984,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,108.10 : 1,020,087.44 = 657,488.50 : x
  2. Step 2: Convert to fraction form
    681,108.10/1,020,087.44 = 657,488.50/x
  3. Step 3: Cross multiply
    681,108.10x = 1,020,087.44 × 657,488.50
  4. Step 4: Simplify right side
    681,108.10x = 670,695,760,794.44
  5. Step 5: Solve for x
    x = 670,695,760,794.44/681,108.10
  6. Step 6: Final answer
    x = 984,712.65

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1.5x scale

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.