Home / 681,103.09-1,020,079.95-657,483.49

Finding the Fourth Proportional to 681,103.09, 1,020,079.95 and 657,483.49

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Solution

The fourth proportional to 681,103.09, 1,020,079.95 and 657,483.49 is: 984,705.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,103.09 : 1,020,079.95 = 657,483.49 : x
  2. Step 2: Convert to fraction form
    681,103.09/1,020,079.95 = 657,483.49/x
  3. Step 3: Cross multiply
    681,103.09x = 1,020,079.95 × 657,483.49
  4. Step 4: Simplify right side
    681,103.09x = 670,685,725,605.03
  5. Step 5: Solve for x
    x = 670,685,725,605.03/681,103.09
  6. Step 6: Final answer
    x = 984,705.16

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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.