Home / 739,658.52-1,020,721.50-400,119.48

Finding the Fourth Proportional to 739,658.52, 1,020,721.50 and 400,119.48

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Solution

The fourth proportional to 739,658.52, 1,020,721.50 and 400,119.48 is: 552,160.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,658.52 : 1,020,721.50 = 400,119.48 : x
  2. Step 2: Convert to fraction form
    739,658.52/1,020,721.50 = 400,119.48/x
  3. Step 3: Cross multiply
    739,658.52x = 1,020,721.50 × 400,119.48
  4. Step 4: Simplify right side
    739,658.52x = 408,410,555,804.82
  5. Step 5: Solve for x
    x = 408,410,555,804.82/739,658.52
  6. Step 6: Final answer
    x = 552,160.96

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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.