Home / 909,471.15-1,255,158.90-679,629.33

Finding the Fourth Proportional to 909,471.15, 1,255,158.90 and 679,629.33

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Solution

The fourth proportional to 909,471.15, 1,255,158.90 and 679,629.33 is: 937,954.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,471.15 : 1,255,158.90 = 679,629.33 : x
  2. Step 2: Convert to fraction form
    909,471.15/1,255,158.90 = 679,629.33/x
  3. Step 3: Cross multiply
    909,471.15x = 1,255,158.90 × 679,629.33
  4. Step 4: Simplify right side
    909,471.15x = 853,042,802,250.54
  5. Step 5: Solve for x
    x = 853,042,802,250.54/909,471.15
  6. Step 6: Final answer
    x = 937,954.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.