Home / 739,912.05-1,021,081.32-400,380.30

Finding the Fourth Proportional to 739,912.05, 1,021,081.32 and 400,380.30

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Solution

The fourth proportional to 739,912.05, 1,021,081.32 and 400,380.30 is: 552,526.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,912.05 : 1,021,081.32 = 400,380.30 : x
  2. Step 2: Convert to fraction form
    739,912.05/1,021,081.32 = 400,380.30/x
  3. Step 3: Cross multiply
    739,912.05x = 1,021,081.32 × 400,380.30
  4. Step 4: Simplify right side
    739,912.05x = 408,820,845,226.00
  5. Step 5: Solve for x
    x = 408,820,845,226.00/739,912.05
  6. Step 6: Final answer
    x = 552,526.27

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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.