Home / 740,939.29-1,022,489.80-401,406.73

Finding the Fourth Proportional to 740,939.29, 1,022,489.80 and 401,406.73

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Solution

The fourth proportional to 740,939.29, 1,022,489.80 and 401,406.73 is: 553,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,939.29 : 1,022,489.80 = 401,406.73 : x
  2. Step 2: Convert to fraction form
    740,939.29/1,022,489.80 = 401,406.73/x
  3. Step 3: Cross multiply
    740,939.29x = 1,022,489.80 × 401,406.73
  4. Step 4: Simplify right side
    740,939.29x = 410,434,287,076.35
  5. Step 5: Solve for x
    x = 410,434,287,076.35/740,939.29
  6. Step 6: Final answer
    x = 553,937.81

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1.5x scale

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.