Home / 739,956.26-1,021,142.80-400,424.51

Finding the Fourth Proportional to 739,956.26, 1,021,142.80 and 400,424.51

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Solution

The fourth proportional to 739,956.26, 1,021,142.80 and 400,424.51 is: 552,587.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,956.26 : 1,021,142.80 = 400,424.51 : x
  2. Step 2: Convert to fraction form
    739,956.26/1,021,142.80 = 400,424.51/x
  3. Step 3: Cross multiply
    739,956.26x = 1,021,142.80 × 400,424.51
  4. Step 4: Simplify right side
    739,956.26x = 408,890,608,383.42
  5. Step 5: Solve for x
    x = 408,890,608,383.42/739,956.26
  6. Step 6: Final answer
    x = 552,587.54

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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.