Home / 739,200.30-1,108,476.45-339,708.30

Finding the Fourth Proportional to 739,200.30, 1,108,476.45 and 339,708.30

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Solution

The fourth proportional to 739,200.30, 1,108,476.45 and 339,708.30 is: 509,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,200.30 : 1,108,476.45 = 339,708.30 : x
  2. Step 2: Convert to fraction form
    739,200.30/1,108,476.45 = 339,708.30/x
  3. Step 3: Cross multiply
    739,200.30x = 1,108,476.45 × 339,708.30
  4. Step 4: Simplify right side
    739,200.30x = 376,558,650,419.54
  5. Step 5: Solve for x
    x = 376,558,650,419.54/739,200.30
  6. Step 6: Final answer
    x = 509,413.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.