Home / 740,912.40-1,022,458.92-401,380.56

Finding the Fourth Proportional to 740,912.40, 1,022,458.92 and 401,380.56

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Solution

The fourth proportional to 740,912.40, 1,022,458.92 and 401,380.56 is: 553,905.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,912.40 : 1,022,458.92 = 401,380.56 : x
  2. Step 2: Convert to fraction form
    740,912.40/1,022,458.92 = 401,380.56/x
  3. Step 3: Cross multiply
    740,912.40x = 1,022,458.92 × 401,380.56
  4. Step 4: Simplify right side
    740,912.40x = 410,395,133,886.60
  5. Step 5: Solve for x
    x = 410,395,133,886.60/740,912.40
  6. Step 6: Final answer
    x = 553,905.07

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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.